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Physics 101 Mechanics
May 2023
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Physics 101 Mechanics
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May 4, 2023
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May 4 of 2023
Put together a quality control plan for a tow prep filament-wound type V pressure vessel, including material testing needed, material and process parameters to control, and key equipment maintenance activities. Material Testing Material and Process Control Equipment Maintenance
Problem 1: Problem solution by using lean tool: Lean Six Sigma (in detail way with every data in each step for report). Honda issues recall due to potential fuel pump failure. Problem 2: Problem solution by using lean tool: Other than Lean Six Sigma (in detail way with every data in each step…
If you are supplying 9.8 cubic feet of air per minute to a machine through a 1 inch inside diameter pipe, what is the velocity of that air in feet per second?
Please help me answer the following questions, please provide steps, and work. There are 2 PARTS TO THESE QUESTIONS, ADD EXAMPLE - Question: 1) -In the movie, The Matrix Reloaded, Neo (80 kg) jumps toward Agent Smith (600 kg) who jumps towards Neo. When they collide, they grab hold of one…
A refrigeration unit idealized as a reversed Carnot cycle has a product load capacity of 1 TR and operates at a coil temperature of 5°C. The environmental temperature is 43°C and is used as a cooling medium, rising to a temperature of 53°C. The temperature at the heat rejection process is…
A cylinder-piston system contains 3.3 Ibm of air at 100 Psia and 390 o F. At this state, the piston touches a pair of stops. The mass of the piston is such that 85 Psia pressure is required to move it. A valve at the bottom of the tank is opened, and the air is withdrawn from the cylinder. The…
A site is being evaluated for a wind farm. The steady wind speeds are 8.22 m/s on average. How much power can be theoretically generated on average if the mass of air flowing by is estimated to be 1200 kg/s? a. 40.5 kW b. 48.6 kW c. zero – all lost in friction d. limitless – just need more…
A steel (E=30 Mpsi, ν=0.292) tire is shrunk over a cast-iron (E=13 Mpsi, ν=0.211) rim that is 1 inch thick with an outside diameter of 16 inches after the shrink fit. The final tire has a thickness of 3/8 inch. Given an initial radial interference of 0.1 inch, what is the hoop stress in the…
Describe the following heat treatment process for steel and for each the indented final microstructure: Full annealing Normalizing Quenching Tempering
use an inverse trig function to write alpha as a function of 15
A robotic pool cue is designed to carefully impart enough energy to a cue ball for the precision needed when playing billiards. The robotic pool cue consists of a pool cue and a spring (with a spring constant k = 18 lb/in.) that can be depressed a specific distance x and suddenly released,…
Dimensions are applied to the opposite side of the reference line as the weld symbol. Select one: a. true b. false
What do the numbers 2-6 indicate when they are placed on the right side of a fillet weld symbol? Select one: a. The pitch then the length of a weld required b. The length then the pitch of a weld required c. The length then the space between the welds required d. The size of the vertical and…
Describe the phase transformations that occur when a 1.0 wt% C steel is cooled under equilibrium conditions from 1100 degrees C (where it is fully austenite) to below 727 degrees C. Also, describe the microstructure at room temperature.
Air enters the 0.75 m^2 inlet of an aircraft engine at 80 kPa and 27 degrees Celsius with a velocity of 230 m/s. Determine the volume flow rate in m^3/s at the engine's inlet and the mass flow rate in kg/s at the engine's exit. The gas constant of air is R = 0.287 kPa*m^3/(kg*K).
WHY ARE ALL EXPERTS GIVING ANSWERS?? A throttling calorimeter is used to measure the dryness fraction of the steam in the steam main, which has steam flowing at a pressure of 8 bar. The steam, after passing through the calorimeter, is at a pressure of 1 bar and a temperature of 115°C. …
SOLVE BOTH CORRECTLY TO GET UPVOTE A liquid is heated at approximately constant pressure from 20°C to 80°C by passing it through tubes which are immersed in a furnace. The furnace temperature is constant at 1500°C. Calculate the effectiveness of the heating process when the atmospheric…
The disk A is pinned at O and weighs 22 lb. A 1-ft rod weighing 5 lb and a 1-ft-diameter sphere weighing 12 lb are welded to the disk, as shown. If the spring is originally stretched 1.5 ft and the sphere is released from the position shown, determine the angular velocity of the disk when it…
In MATLAB Fundamentals, how do we use the reshape function? Write the shortest statement that will extract the first row from m and store it in the variable z.
A 6,000 lb load is being pushed up an inclined surface with theta of 30 degrees. The coefficient of friction between the weight and inclined surface equals 0.15. what rod end pressure (in psi) is required to decelerate the 3 cylinder to 60 ft/min to zero velocity in 1/4 in. at the end of the…
Plot this expression for flow rate through a pulmonary capillary. Q/Qmax = 1 - (hv/ha)^4 where the 2*h refers to the capillary height at the venule end (exit) over the arteriole end (inlet). Plot this and note how quickly the venous pressure effect is minimized.
As the engineer in charge of installing new equipment in your plant, you were given the task of installing a new Turning Center. The machine is used to turn parts that start as rough castings. These castings can have off-center regions with a mass (m) as large as 0.4 ounces at a radius (r) as…
To indicate a part very accurately in a chuck, you should use _ jaw chuck
Create the following evenly spaced vector using the linspace() function to range from -π to π with 10 values and store it to variable x.
A two-stage series centrifugal pump is required for a fire engine discharging 60 1/s at a head of 75 m. The mechanical efficiency of the pump is 87% and the manometric head developed is 75% of the theoretical head. The specific speed is 40, the outlet vane angle is 30°, and the flow velocity is…
The blade tip and hub diameters of an axial flow turbine are 5.75 m and 2.5 m, respectively. It works under a net head of 20 m with an overall efficiency of 83% and hydraulic efficiency of 93%. If the turbine has a speed of 150 rpm developing 24 MW, calculate the inlet and outlet blade angles…
The water leaves the guide vanes of an inward flow reaction turbine at 12 and the width of the wheel at inlet is 310 mm. The external and internal diameters are 14 m and 0.7 m, respectively. If the velocity of the flow is constant at 2.2 m/s with a speed ratio of 0.68, find (1) the discharge…
As a technician, you're going to conduct multipoint inspections that will require you to look over the entire vehicle. What are the 2 most important safety items you should check every time you service a vehicle?
What would be the best way to flush out a brake system? If a customer were to ask is it worth the extra cost? How would you explain this to them?
Determine the energy of the H-atom in n = 1, 2 and 7 states.
If the stress values of a glass rod are tested with uniaxial tension and the four-point bending method, will the stress values be the same? If not which produces higher values and why?
Besides the transition temperature, what are other indicators of toughness from a Charpy test plot?
Describe the factors that influence the magnitude of the roll force. You are in charge of a rolling operation of a metal strip of 100 mm wide and 30 mm thick to a thickness of 10 mm in one pass. The roll radius is 200 mm which rotates at 100 rpm. Although you have several rolling machines of…
A sheet metal of 2 mm thick has to be bent to a radius of 20 mm. Assume that the material has a Young' modulus of 70 GPa and Yield strength of 400 MPa, estimate the engineering strain due to bending. If the minimum bend radius for the metal is R=6T.
Need help; please. To lay out a storeroom for Lean Pacing Lamp design project Storeroom and Inventory (Kanban)
For OTLF, G(s), nearly sketch the root locus using all required drawing guides. (You don't need to use a guide if it is not required) Scale your plot for 0-6 radians on the real axis and +/- 3 rad/s on the imaginary axis. G(s) =…
It is about supplying 2.72 kg of air per minute at an absolute pressure of 2060 kPa, starting from an initial absolute pressure of 100.95 kPa and a temperature of 26.7°C. If a two-stage compressor is used and the compression is adiabatic and the intercooling is ideal, find the shaft power (in…
Find the shaft power required (in kW) to compress 45.4 kg of air per hour adiabatically from an absolute pressure of 100.95 kPa and 15.6 C to an absolute pressure of 706.32 kPa. The efficiency of the compressor is 80%.
Design a compound gear train for a transmission where its input is a motor that delivers a 15 N-m of continuous torque at speeds between 1600 and 1900 RPM. The application requires less than 5 hours per day running, and no impact loading is expected. The transmission output must deliver at…
Prob 1. A heat pump has a cooling COP of 3.4 and a heating COP of 4.5. It draws 3.5 kW of electricity in cooling mode and 3.6 kW of electricity in heating mode. Calculate: - The cooling capacity in BTU/hr - The heating capacity in BTU/hr - The EER for cooling - The SEER for cooling.
Reminder: When a logarithm is written "log" without an explicit base, it is assumed to be base 10. (a) logâ‚„64 = 3 (b) logâ‚â‚€(1/10)
Identify the type of cable permitted in single-family and multi-family dwellings that cannot be used in applications where the cable is to be buried below ground, used in a structure greater than three stories, nor in commercial garages, movie theaters, places of assembly, elevator shafts among…
A spherical drop of oil has diameter of 0.20mm. Determine its volume in cubic meters
Refer to the AHU experiment. In a vapor compression cycle, a refrigerant enters the evaporator at -10°C and leaves at 5°C. If the refrigerant has a specific heat capacity of 2.5 kJ/kg-K, what is the heat absorbed by the refrigerant per kg?
A 1 B^(3) C 5 D 10 Select the twe answer choices that correctly answer the question.
a triangle. The area of this triangle can be fou led by (-7,-15),(-1,-3),(4,7) (in that order. )
I need help writing Arduino code and creating a circuit board for a robot that is built in TinkerCad. Task: Design a robot that is part of a team. This water robot is meant to put out fire by spraying water. It uses 2 sensors, a temperature sensor and an IR sensor. It also has a DC motor and a…
Simplify the expression using the division approach. ((5)/(7)-(7)/(6))/((3)/(10)+(11)/(7)) Show your work here
A 2nd or 3rd Order Mechatronic system (actuator, inverted pendulum, magnetic levitation, etc.) will have continuous time transmission. You need to evaluate and interpret the following items: a) Discrete-time for different sampling times (Ts=10, 0.1, 0.001) with MATLAB to obtain the transfer…
Now slide the "Damping" quickly all the way to "Lots". What happened to the Thermal Energy?
Problem 15.1: In designing a solar thermal system for space heating, it is determined that water will be used as a storage medium. If the water temperature can vary from 80 degrees F up to 140 degrees F, how many gallons of water would be required to store 1 x 10^6 Btu?
How much energy is required in kJ/kg for the water flow to generate saturated steam at 300 kPa and 133.52 oC?
What is a selective surface? How and why does it affect the efficiency of a solar collector?
QUESTION 2 Solve the proportion for the missing variable. Round to two decimal places as necessary. (4)/(x)=(17)/(25) QUESTION 3
Ch 9 Assessment: If a screw has a circumference of 16mm and a lead of 0.4mm, and you apply 15N of force, how many Newtons of force would be produced?
Learning Assessment Algebra 2, U.1: Identify the direction a parabola. In which direction does the parabola y=-(1/17)(x+6)²+1 open? Down right. Submit.
A wheel driven by two similar jets transmits 5000 kW to the shaft when running at 398 rpm. The head from the reservoir to the nozzle is 210 m and the efficiency of power transmission through the pipelines and nozzles is 92%. The jets are tangential to a 1.55 m diameter circle. The relative…
Draw the type of beam according to its support: Simply Supported Beam Cantilever Beam Continuous Beam Fixed End Beam Propped Beam
What will it take to defend public water from cyber attacks??
What thermodynamic region is water in at u = 2494.0 kJ/kg and T = 90.0 C? What thermodynamic region is water in at 115 C and 57.868 kPa?
Water at 60°F is flowing through a 0.12-inch diameter, 100-foot long vertical copper pipe at an average velocity of 10 ft/s. Determine the (a) head loss, (b) pressure drop, and (c) pump power. Note that the effect of potential energy is not negligible.
Suppose you budgeted $1950 for fuel expenses for the year. How many miles could you drive if gas were $3.25 per gallon and your vehicle averaged 30 miles per gallon?
Use definitions to support your answer. Assessment Practice 14. Look at these polygons. Part A Part B Name one attribute that all 4 polygons Name an attribute th have. have that B and C d
We found a new route for the pipes for the lab, but now we have to place the pump outside of the building to accommodate the changes. If the new pipe system uses 10m of 0.01m PVC pipe and connectors (with 3 - 90 degree flanged (K = 0.3), 2 - 45 degree long radius flanged (K = 0.2), and 6 - 180…
explain the thermodynamic Analysis of Mechanical Supercharging in Internal Combustion Engines
Research Proposal: Development and Performance Evaluation of a Solar Cooling System 1. Project Title 2. Motivation 3. Problem Statement 4. Literature Review 5. Research Aim and Objectives 6. Methodology 7. Work Plan: Research Activities 8. Limitations of the Study 9. Potential Research…
As a shop technician, you need to convert dimensions given as fractions to decimals on a blueprint of machined parts. The overall length of a part is 3(1)/(2) inches. What is the overall length, in inches, of the part expressed as a decimal?
Find the maximum sea-rise when the lowest atmospheric pressure is 0.85 bar, spatial mean atmospheric pressure is 1 bar, bay length is 5 km, bay mean depth is 5 m, maximum wind velocity is 50 m/s, and wind direction is 15 degrees.
0.65 in. 0.75 in. Knowing that 360-lb vertical forces are required to complete the pruning of a small branch, determine the magnitude P of the forces that must be applied to the handles when the shears are adjusted as shown. The magnitude of P is lb.
A car engine circulates coolant (assume water) through an engine at 80 gal/min. The coolant passes through the radiator (heat exchanger) and incurs a 10°C drop in temperature after entering the radiator at 100°C. The radiator frontal area exposed to air flow is 0.25 m^2. While driving at 35…
0.6 m3 Argon is contained in a piston-cylinder device at 1.2 MPa. Argon now expands until the volume triples and pressure halves. The gas constant for Argon is 0.208 kJ/kgK. Find the work from/to the spring within 4 sf and appropriate units. ive posted this question 3 times and have had 3…
For 1-2, define a variable and write an algebraic expression The total cost for a family to visit the The nun museum is $6, plus $4 per person. less than in the mus Define a variable: Represent the total cost of a museum visit:
If f(x) = log₃(x), what is the transformation that occurs if g(x) = -log₃(x)? (Enter s for stretch, c for compress, mx for mirrored across the x-axis, my for mirrored across the y-axis, r for shift right, l for shift left, u for shift up, and d for shift down.)
Water (ρ = 1000 kg/m3 and ν = 1 x 10-6 m2 /s) is transported to a residential area at a rate of 1.5 m3 /s through a 70 cm diameter horizontal concrete pipe with a surface roughness of 3 mm and a total length of 1500 m. a) Ignoring any minor losses, calculate the useful pumping power requirement…
It is argued that a refrigerator with an efficiency coefficient of 13.5 has been developed that keeps the refrigerated volume at 2 °C while operating in a room at 20 °C. Could this be true?
Q3-A Carnot heat engine takes 700 kJ of energy from a thermal energy store at 600 °C and heats a thermal energy store at 50 °C. a) The thermal efficiency of the Carnot machine, b) calculate the heat supplied to the low temperature thermal energy store?
500 kJ of heat is drawn per minute from the interior of a refrigerator, and the interior is kept at a temperature of 4 °C. Since the power required to operate the refrigerator is 2 kW; a) the efficiency coefficient of the refrigerator, b) calculate the heat transfer from the refrigerator to the…
There is 180 MW of heat transfer from the boiler to a heat engine. The heat that the heat engine gives as waste to a nearby stream is 100 MW. Calculate the net power and thermal efficiency of the heat engine.
When inspecting the location and orientation of the hole labeled “A,” which features should the inspector use to orient and locate the part?
Given the standard uncertainty of x and y coordinates is 15 µm, write a code in MATLAB to calculate the uncertainties associated with the radius and center coordinates. Please write a code in MATLAB that can be used for any coordinates and radius and include all the steps and full code. If you…
Please show everything on MATLAB. Thank you. Write a script that will generate random integers in the range from 0 to 50 and print them until one is finally generated that is greater than 40. The script should print how many attempts it took.
An car owner uses annually 4000 kg of fuel (assume C7H16). Assuming complete combustion, the annual production of CO2 in kg is:A. 10000 B. 12000 C. 14000 D. 16000 E. 18000
Please give a thorough solution. Thank you! The temperatures recorded during the summer and winter in a particular locality are 45°C and 15°C respectively. If air is used as a cooling medium with a temperature difference of 15°C, calculate the COP for heating and COP for cooling of the…
Write a MATLAB code to numerically solve the Laplace equation for the stream function, for the horizontal flow (u=U=3) past a cylinder (R=1/4) in a square domain (Lx=Ly=1) with infinite boundary conditions on the top and bottom edges.
if a flat transmission belt or a conveyor belt is running off a pully??
hot oil is to be cooled in a double-tube counter-flow heat exchanger. the copper inner tubes have a diameter of 2 cm and negligible thickness. the inner diameter of the outer tube (shell) is 3 cm. the cold fluid flows through the tube and the hot fluid through the shell. taking the average…
An engine working on the otto cycle has a suction pressure of 1 bar and a pressure of 14 bar at the end of compression. Find (i) Compression ratio (ii) Clearance volume as a percentage of cylinder volume (iii) The ideal efficiency and MEP if the pressure at the end of combustion is 21 bar.
A 20 mm diameter copper sphere initially at 500 K is cooled by subjecting it to a stream of air at 1 atm and 280 K, having a velocity of 10 m/s, and NuD = 100. Copper: k = 370 W/mK, Cp = 420 J/kgK, p = 8933 kg/m3 Air: k = 0.03 W/mK, Cp = 1.009 * 10^3 J/kgK, p = 0.955 kg/m3, v = 20.92 *…
Hot oil is to be cooled in a double-tube counter-flow heat exchanger. The copper inner tubes have a diameter of 2 cm and negligible thickness. The inner diameter of the outer tube (shell) is 3 cm. The cold fluid flows through the tube and the hot fluid flows through the shell. The convective…
Consider a rigid container of 3 m3 which contains water. Determine the mass (in kg) of water at 4 MPa and 500°C.
Hydraulic cylinder with excess oil on the cylinder rod indicate what
Design the I-section connecting rod for a single cylinder I.C engine using the following specifications: - Piston diameter = 100 mm - Stroke length = 125 mm - Length of the connecting rod = 300 mm - Mass of reciprocating parts = 2.25 kg - Speed of engine = 1500 rpm - Maximum explosion…
Two parallel shafts with 4 in. center distance are connected with 20-degree, 6-pitch spur gears, providing a ratio of speed of -3.0. a) Determine the pitch circle diameters and the number of teeth on the pinion and gear. b) Establish if there will be interference from using standard full-depth…
Develop an expression for temperature drop of a metal flowing in a straight channel of square cross-section (side: a) of length L in a water-cooled die. Assume that mold temperature is constant at T0, the metal enters the channel at a temperature Ti and exits at a temperature Tf. Will…
A machine of mass 500 kg is supported on a beam which deflects 2.5 mm statically at the load. The machine has an out-of-balance mass of 5 kg rotating at a 200 mm radius at a speed of 500 rpm. Neglecting the mass of the beams, find the amplitude of the forced vibration of the machine. To what…
For a 1.5 kg cube-sat with a frontal cross-sectional area of 100 cm^2 and a drag coefficient of 3, if the estimated conservative lifetime is 5 years, then find the estimated altitude of the cube-sat.
Calculate the total deltaV required for an orbital transfer from 500 km (i = 0, equatorial plane) to 2000 km (i = 45 degrees); a) Using Hohmann and simple plane change separately b) Using combined Hohmann and plane change
an off ramp for a motorway has a radius of curvature of 60m. if the coefficient of friction is 0.4N. what is the maximum speed that a car can take the ramp at
The algae Lemna is being grown on the surface of a wetland used for wastewater treatment. This organism has a doubling time of 36 hours under present conditions. The initial mass of algal seed is 20 g. (1) Please develop MatLAB codes to calculate how long it will take to attain the algal mass…
what is the main advantage of grease over oul is the grease
An industrial pollutant enters a small stratified lake through the sewage system. The vertical profile of pollutant concentration is measured in the lake as listed below: Depth (m): 0 1 2 3 4 5 6 7 8 9 Pollutant Conc. (Micromoles/m3): 4.9 5.2 5.1 4.9 3.2 2.9 2.6 2.4 2.1 1.8 The laminar…
Estimate the velocity with which a 200 lb person would contact the ground if they jumped from an airplane at an altitude of 2,000 ft and including air-resistance.
Ammonia is used in a reverse Carnot cycle refrigeration with reservoirs at 110 F and 10 F. 1000 Btu/hr are removed. a. Find the COP b. Work Input c. Heat rejected
A calorically perfect gas at location 1 with p1 = 100 kPa, u1 = 500 m/s, T1 = 300 K turns through a 30° expansion corner. Find the fluid properties after the expansion at location 2 (p2, T2, r2) and velocity components.
Find the lift and drag forces on a flat plate, of chord length 2 m, depth 10 m inclined at 20° to the horizontal in a freestream of M1 = 3, p 1 = 100 kPa, T 1 = 300 K.
Reflectivity of semiconductors decreases as temperature increases because their conductivity increases. So, in this case, why is the reflectivity of metals high?
Make four sketches for different ideas that can secure recycling and filament extrusion to produce micro 3d printed materials. Show essential parts in each sketch.
A submarine is cruising just below the surface (depth of 6.3 m) of the Arctic Ocean (specific gravity of sea water is 1.031) on a normal day (atmospheric pressure is 99.35 kPa, ambient temperature is 25°C). It practices an emergency dive to a depth of 203 m. What is the change in pressure (in…
The air-fuel mixture is burned between a pair of parallel quartz sheets that are 20 mm apart. The tube has a square profile with dimensions of 40x40. The properties of the unburnt mixture are 293 K, 1 atm, and 29 kg/kmol, and the flow speed is 55 m/s. What is the turbulent flame speed if the…
How much energy must be removed from the bathroom to return it to its initial conditions from the peak temperature? Initial conditions (69.12°F, humidity 62%) Peak conditions (74.25°F, 91%)
Using Matlab and Simulink, build a feedback control system for a rotating motor with a connected link. The system should be able to track the position of the tip of a connected link as a function of time. The motor and linkage parameters are unspecified.
List 3 benefits of using program flow instructions in the PLC program
The wear coefficient for an artificial hip joint with hardness 1.8 GPa and 11 cm radius is reported to be 10^-7. If a 160 lbs person walks an average 1 million steps with an average of 60° of rotation at the hip per step, calculate the total wear volume in 10 years. 2. A human knee joint…
Identify the main latent failures in the M1 Air Disaster (The BAC1-11 Windscreen Accident). Categorize them using a human error classification of your choice and justify your answer.
Calculate the shell diameter for a 2-tube passes tube bundle, with a total of 50 tubes. the tubes are on a triangular layout with a diagonal pitch of 1.25"
A system has available energy levels of 0, 1, and 2 units and each of the energy levels has a degeneracy of 10,000. Consider a thermodynamic state consisting of 2,000 particles having a total energy of 1,000 units. a) Determine the values of N0, N1 and N2 that will result in the most probable…
Air at 50 °C and M=0.5 is accelerated to M=0.8. If the static temperature is 100 °C at this point how much energy per unit mass must be added to or rejected from the flow?
In double pipe heat exchanger design we have hydraulic diameter and equivalent diameter. what difference between these two diameters? where are they used in design calculations?
The motion of a rigid body constrained to rotate about a fixed axis that does not pass through its mass center is called non-centroidal rotation.
Q2) The volume of oxygen with a pressure of 8 MPa and a temperature of 200 K is 0.3 m^3 and the volume of nitrogen with the same pressure and temperature is 0.4 m^3. After mixing nitrogen and oxygen, the final temperature of the mixture is 200 K and the pressure is 8 MPa. The final volume of…
I am writing a lab report on the specific heat ratio for an ideal gas. Could you give me a summary of what a calorimeter is and how it can be used?
A horizontal pipe with a cross section of 25 cm is 100 meters long. Oil flows through at Q = 0.491 cubic meters per second. The viscosity of the SAE - 10W oil at 20 degrees celcius is 0.1 Ns/m^2 and the density is 92% of water's density. We can assume that the pipe is smooth. a) Is the flow…
A bevel spur gear bearing with an intersection angle of 90 degrees, room 4 mm, tooth enlargement z_{1} = 18 z_{2} = 54 tooth width b = 20 mm; a) Find the number of teeth of the equivalent straight teeth, b) Find the average house, pitch circles and average pitch circle diameters, c) The…
The activation barrier for jump is 100 kJ/mol. Calculate the rate at which a vacancy jumps in copper at 20°C.
For a crank-slider mechanism with a time ratio, Q = 1.37, a stroke of (ΔR4)max = 46 millimeters, and the time for the mechanism to complete one full cycle, t = 3.4 seconds, calculate the imbalance angle, β (in degrees), the crank speed, ω2 (in revolutions per minute), and the time required…
A bevel gear mechanism with an intersection angle of 90 degrees, a modulus of 4 mm, number of teeth z1 = 18, z3 = 54, tooth width b = 20 mm; a) Number of teeth of equivalent spur gears, b) Average modulus, division circles and average division diameters, and average division circle diameters,…
Consider a two-stage chemical rocket with a total initial mass of 14,700 kg and a total structural mass of 1,809 kg. The structural coefficient is 0.13 and the payload factor is 0.3. The structural coefficient, payload factor, and equivalent exhaust velocity are the same for both stages in a…
Air at 800 m/s, 100 kPa, 300 K passes through a normal shock. a) Calculate the velocity, temperature, and pressure after the shock b) Calculate the temperature and pressure if this air were isentropically decelerated to the same velocity you found in part a. Please do both parts.
Examination of a conical spur gear mechanism with an intersection angle of 90 degrees, a modulus of 4mm, number of teeth z1=18, z2=54, tooth width b=20 mm. FIND a) The number of teeth of equivalent spur gears b) The mean modulus, dividing circles, and average dividing circle diameters …
Water at 20°C flows in a rectangular open channel, as shown. At station 1, the channel width is 1.9 m and the depth of water is 1.2 m. At station 2, the channel bottom has been raised by 0.3 m as shown, and its width is also reduced to 1.6 m. The water depth at this station is 0.8 m. Assuming…
Hi there, what's the name of the highlighted circles from 1 to 7?
Dear Chegg team, I need a detailed write-up with project topics on LAB ANALYSIS OF GRANITE AGGREGATE CONCRETE PRODUCTION. Based on the following headings: I) Introduction II) Background of the study III) Statement of problem IV) Aims and Objectives V) Literature reviews With references.…
Determine the shaft kW for an 80 percent efficient pump to discharge 0.11 liter/s water through the system. The system losses, exclusive of pump losses, are 12V^2/2g, and H = 16 m.
The stroke volume of a 4-cylinder 4-stroke engine is 1.22 liters. In this engine, the average piston speed is 10 m/s, the indicated pressure is 800 kPa, and the airflow into the cylinders is 45 g/s. Calculate the volumetric efficiency of the engine since the mechanical efficiency is 80% and the…
A force of 200 lbf causes a 0.75-inch by 1.25-inch magnesium rod to elongate from 0.75 inches up to 1.5 inches. Calculate the modulus of elasticity in psi.
Module: Product Lifecycle Management TOPIC: Design report on Thermal Imaging Fixed-Wing Drone for spotting fires Answer the following on the report: i. Problem or customers' need Assessment: Clearly indicate the methods used to identify a product or customers' need that your product will…
A lift with a mass of 1200 kg is raised to a height of 100 meters by a winding drum of diameter 400 mm. The rotating parts have an equivalent mass of 200 kg and an equivalent radius of gyration of 180 mm. The mass of the cable is 3 kg/m. The lift has an initial acceleration of 2.5 m/s^2. The…
In a single-stage axial flow turbine, the inlet pressure of the burned gases is 1900 kPa, the temperature is 1200 K, the cross-sectional area is A1 = 0.1131 m^2, the outlet velocity from the stator is 600 m/s, and the angle a2 is 650°. Assuming that the gas angle B2 at the rotor inlet is 250°…
A piston-cylinder device initially contains 0.7 kg of air at 150 kPa and 27 °C. The piston is resting on a pair of stops. The mass of the piston is such that a pressure of 350 kPa is required to move it. The air is now heated until its volume has doubled. i. Determine the temperature of the…
Please solve as soon as possible. Assume 5000 kPa, 2100 K conditions after combustion in an Otto cycle with a compression ratio of 10:1; the inlet temperature is 300 K. Find the engine power, efficiency, average effective pressure, and other temperatures in the cycle, and then find the average…
A well-insulated turbine, operating at steady state, has steam for its working fluid. The steam enters at 40 bar with a temperature of 700°C and velocity of 70 m/s. The fluid exits as a two-phase vapor at 1.0 bar, x = 0.90, and a velocity of 20 m/s. The inlet piping has a diameter of 0.10 m.…
An expression for flow rate through a pulmonary capillary. We could manipulate that into the form: Q/Qmax = 1 - (hv/ha)^4 where the 2 * h refers to the capillary height at the venule end (exit) over the arteriole end (inlet). PLOT this and note how quickly the venous pressure effect is made…
Determine the key length of square key for gear driven shaft to withstand a torque of 3220 N-m. The shaft diameter is 70 mm with design stress of 70 MPa in shear, the thickness and width of key is 15 mm. (A) 6.7 cm (B) 77 cm (C) 88 cm (D) 8.8 cm
A shaft whose diameter is 56 mm rotating at a speed of 220 rpm and power to be transmitted is 47 kW at steady load. Assuming a 14 mm x 14 mm x 90 mm square key is used, determine the factor of safety used in the key if yield point in shear is 275 MPa. (A) 3.75 (B) 4.75 (C) 5.75 (D) 7.75
A Venturi tube is used to measure flow rate of 42 l/s. Tube diameter is 120 mm and throat diameter is 70 mm. Water density is 1000 kg/m3. Calculate the pressure difference Δp = p1-p2 between the tube and the throat, using continuity equation and Bernoulli's equation. Round off the answer to…
1 kg of Air , modeled as an Ideal Gas , undergoes a process from a pressure of 1 bar and a temperature of 300K to a final state where its pressure is 3 bar and its temperature is 1100K. Calculate its change in enthalpy.
A car is parked on a summer day at noon time under the sun. It can be assumed that heat Qsolar = 750 W is transferred into the car by solar radiation. This heat raises the air temperature inside the car. However, at the same time, the car also loses heat Qconv to the surrounding air from the…
An industrial fan running at 600 rpm is driven by a 25 kW, 1260 rpm induction motor. The pulley mounted on the motor shaft is 280 mm. The center-to-center distance is 1.55 meters. Use f = 0.35 A. Determine the minimum angle of wrap. (A) 148.6° (B) 158.6° (C) 168.6° (D) 188.6°
Example 6.1: Determine the second moment of area I for the following T-shaped cross section. For all these types of problems it is best to adhere to the following methodology when solving them
a) Calculate the total heat transfer coefficients (U = W/m2K) for the Atmosphere Contacted External Wall and Earth Contacted External Wall, whose building components are given below. b) How many meters of panel radiator with a unit heat output of 1100 W/m are required for a room with a total…
7-) In a reciprocating cylinder, in the initial state, the mass of 3 kg refrigerant (R-134a) is at a pressure of 1 MPa and a temperature of 70â°C. As a result of heat transfer to the environment at constant pressure, the refrigerant becomes liquid at 40â°C. The pressure of the environment is…
3-) 2 kg in a closed container of constant volume, initially at 120ºC, 50% dryness. There is water. As a result of heat transfer from the environment with a temperature of 500ºC to the container, pressure is 300 kPa. T(K) = 273.15 + ºC
6-) Air enters an adiabatic nozzle at a pressure of 350 kPa and a temperature of 1200 K. At the outlet, the pressure of the air is 100 kPa and the temperature is 650 K. The speed of air entering the nozzle Since the output velocity is negligible and the specific heats are constant, a) Find the…
(a) Discuss room temperature compensation in the context of thermocouple measurements. (b) The leads of a single K-type thermocouple immersed in a beaker containing warm water record a voltage output of 1.038 mV when the room temperature is 30°C. What is the temperature of water in the…
It is required to measure wall heat flux in a flat plate laminar boundary-layer experiment from LCT images in an inverse technique framework. Flow is arranged in a low-speed wind tunnel. Propose the experimental details, optical configuration, and data analysis required in this context.
A 4 cm thick plate generates thermal energy at a rate of 5 MW/m³. One side of the plate is perfectly insulated, and the other side is maintained at a temperature of 100°C. If the thermal conductivity of the plate is 75 W/m·K, find the maximum temperature of the plate.
Homer Simpson was taking his bath when the soap slipped. Out of curiosity, the soap was stagnant on his belly, which forms an angle of 45° with the horizontal. The soap has a mass of 100 g and the base in contact with the belly has an area of dimensions 4 mm wide by 7 mm long. The film of…
A 4 cm thick plate generates thermal energy at a rate of 4.2 MW/m³. One side of the plate is perfectly insulated and the other side is maintained at a temperature of 50°C. If the thermal conductivity of the plate is 73 W/m-K, find the maximum temperature of the plate.
Explain with the help of sketches the steps carried out to align the part coordinate system with the machine coordinate system.
Solve for relative humidity in decimal, humidity ratio in gr/lbm, enthalpy in BTU/lbm, specific volume in ft^3/lbm, and dew point temperature in °F. Given dry bulb temperature of 75 °F, wet bulb temperature of 62.53 °F, and pressure of 14.67 psia by hand.
Thando is a young entrepreneur who has just opened her own company. She manufactures bricks for the local community. She currently produces approximately 200 bricks per day. She uses low-skilled labor from the local community for production. The brick-manufacturing process is highly…
Another machine in the shop uses a vertical light curtain that is located 325 mm away from the machine. This machine has a worst stop time of 50 ms, the control system has a worst stop time 68 ms, and the response time of the safeguarding device is 32 ms, and the resolution of the machine is 37…
distinctive levels with their examples, that condition monitoring can be carried out
An apple is dropped from 1000 m above ground level and hits a pillow on the ground (assuming air resistance and pillow height are negligible). Draw the time history of acceleration of the apple before and after it hits the pillow, assuming the contact time is 0.2 seconds when the apple hits…
The bob of a pendulum has a mass of .25kg. if this pendulum is 1.0m long, what is its frequency?
DESCRIBE THE MOTION OF A RIGID BODY ABOUT A FIXED AXIS, CALLED THE ROTATION AXIS
Calculate the transition rates of the absorption and emission of radiation. Also, show that the free electrons can neither emit nor absorb photons.
What does the Greek letter delta (Δ) mean? 1. a change in something 2. the displacement of an object 3. an angle in a triangle 4. the time interval between two events
Styrofoam box is filled with ice. The box size is 25x40x100 cm and the styrofoam k = 0.033 W/m°C. The thickness of the walls is 5 cm. The outside temperature is 25 °C (h = 10 W/m°C). What is the time when all the ice is melted? Can I have all the steps in calculation and the answer? This is…
The blood sugar (glucose) level of a diabetic patient is approximately 0.140 g of glucose/100 ml of blood. Every time the patient ingests 40 g of glucose, her blood glucose level rises to approximately 0.240 g/100 ml of blood. A.) Calculate the number of moles of glucose per mL of blood before…
Problem 2. A particle moves in simple harmonic motion with an amplitude of 7.5 cm. if it makes 27 full oscillations each minute, then what are the speed and acceleration of the mass when it is 5.5 cm from equilibrium?
The time period T of a simple pendulum depends on: a. the mass of the bob b. the angle c. the length of the pendulum d. type of material of the bob (iron, wood, etc.) e. All of these
Show the calculation to determine the angle of the track with respect to horizontal. Data: Thickness of block, l = 3.7 cm Distance between track legs, d = 60 cm
Problem 4: Suppose an indicator light on a DVD player has a resistance of 134 Ω. How many volts are supplied to operate it, given that 27 mA passes through it?
Problem 5: A high-voltage electricity transmission line is hung from metal towers with glass insulators having a resistance of 1.1 × 109 Ω each. Randomized Variables R = 1.1 × 109 Ω V = 175 kV What current, in milliamperes, flows through an insulator if the voltage is 175 kV?
Problem 11: A cauterizer, used to stop bleeding in surgery, supplies 1.75 mA at 16 kV. Part (a) What is its power output, P, in watts? Part (b) What is the resistance, R, of the path, in megohms?
Consider a person with a mass of m who is in the space station with artificial gravity. When he is in the occupied outer ring, his simulated weight in newtons is 1/2 mg = 303 N. Suppose that he climbs to a position in one of the radial tunnels that leads to the center of the station. Let R be…
Problem 18: If you try and measure the voltage of a battery with a voltmeter connected in series, you won't get a completely accurate measurement because of the internal resistance of the battery. To see how large this effect is, consider trying to measure the terminal voltage of a 1.585 V…
Problem 20: An uncharged capacitor with C = 15 μF and a resistor with R = 45 Ω are connected in series with a battery of ε = 3.5 V. Randomized Variables C = 15 μF R = 45 Ω ε = 3.5 V Part (a) Express the time constant τ in terms of R and C. Part (b) Calculate the numerical value of τ in…
In India, why do people always try to follow American culture? Why don't they love their own beautiful religious traditions?
A force is being applied at an angle of 45° with respect to a wrench, at a position midway between the bolt and the end of the wrench. Which of the following are ways you can increase the torque on the bolt?
Please explain it clearly, please. I want to understand it.
Please, I need an explanation. You walk in a certain direction at an average velocity of 2 m/s for 5 seconds. You then run in the same direction at a constant velocity of 6 m/s for another 5 seconds. a. What is the total distance traveled? b. What was the average velocity for the entire…
A mirror is intended to produce an erect image of your face 2.5 times its actual size when your face is 30 cm in front of it. A.) Should the mirror be concave or convex? B.) What should its radius of curvature be?
Under what circumstances does a concave mirror produce a real image of a real object? a virtual image?
A.) A concave mirror has a radius of curvature of 30 inches. What is it focal length? A convex mirror has a radius of curvature of 30 inches what is its focal length?
1.) what does a negative magnification signify? a magnification that is less than one? 2.) A moth flies towards a convex mirror. Does its image become larger or smaller as it approaches the mirrors focal point? what kind of image is it? Solve both. Thanks!
rue, becase -4 is greater than or equal to 1 . -4>=1
Two objects of masses 10 kg and 18 kg are hung from the ends of a stick that is 70 cm long and has marks every 10 cm, as shown. 10 kg 18 kg ABCDEF G 10 20 30 40 50 60 If the mass of the stick is negligible, at which of the points indicated should a cord be
If we place a UV flashlight on one side of a UV protective lens and the spectrometer probe on the other side of the lens, we would expect to... a. to see light to no UV light transmitted because it was absorbed by the lens. b. to see very high peaks in the UV part of the spectrum due to the…
A Cu sphere with radius r1 is charged with electric charge Q. Concentric to this sphere are two spherical shells: an intermediate shell of Al with inner and outer radius r2 and r3, respectively, and an outer shell of Au with inner and outer radius r4 and r5, respectively. The spokes comply with…
Consider a loop of wire with an area of 0.50 m2 in a magnetic field that begins with a strength of 4.0 T as pictured above. The magnetic field is decreasing in strength at a rate of 0.5 T/s. What is the induced EMF in the loop of wire? a. 0 V b. 0.25 V c. 2.0 V d. 4.0 V
Most grass and trees appear green to the human eye because that is the part of the visible spectrum that they a. absorb b. reflect or transmit
(v+2)^(2)-64=0 Ify your answer as there is more than one solution, there is no solution.
which of the following is the magnitude of the vector (1,-2)?
What is the electric potential at 1.00 m from a point charge (-15.0) nC
An object was elevated a distance of 6.5 m, resulting in 1300 J of work.
A.) Can a diverging lens even form an inverted image of a real object? B.) Can a converging lens? 2. A double convex lens has surfaces whose radii are both 50 cm. The index of refraction of the glass is 1.52. Find the focal length of the lens. Solve both.
Two horizontal forces act on an object. One force (F1) has a magnitude of 75.0 N and is directed due 30.0° south of east. Another (F2) has a magnitude of 55.0 N and is directed due 70.0° north of west. What is the magnitude and direction of the sum of the two forces (ΣF = F1 + F2)?
A microscope has an objective of focal length 4 mm which is used with a 15x eyepiece. If the image distance for the objective is 160 mm, find the magnification of the instrument. 2. If the screen is moved closer to a movie projector, how should the projector's lens be moved to restore the…
Put together a quality control plan for a tow prep filament-wound type V pressure vessel, including material testing needed, material and process parameters to control, and key equipment maintenance activities. Material Testing Material and Process Control Equipment Maintenance
Problem 1: Problem solution by using lean tool: Lean Six Sigma (in detail way with every data in each step for report). Honda issues recall due to potential fuel pump failure. Problem 2: Problem solution by using lean tool: Other than Lean Six Sigma (in detail way with every data in each step…
If you are supplying 9.8 cubic feet of air per minute to a machine through a 1 inch inside diameter pipe, what is the velocity of that air in feet per second?
Please help me answer the following questions, please provide steps, and work. There are 2 PARTS TO THESE QUESTIONS, ADD EXAMPLE - Question: 1) -In the movie, The Matrix Reloaded, Neo (80 kg) jumps toward Agent Smith (600 kg) who jumps towards Neo. When they collide, they grab hold of one…
A refrigeration unit idealized as a reversed Carnot cycle has a product load capacity of 1 TR and operates at a coil temperature of 5°C. The environmental temperature is 43°C and is used as a cooling medium, rising to a temperature of 53°C. The temperature at the heat rejection process is…
A cylinder-piston system contains 3.3 Ibm of air at 100 Psia and 390 o F. At this state, the piston touches a pair of stops. The mass of the piston is such that 85 Psia pressure is required to move it. A valve at the bottom of the tank is opened, and the air is withdrawn from the cylinder. The…
A site is being evaluated for a wind farm. The steady wind speeds are 8.22 m/s on average. How much power can be theoretically generated on average if the mass of air flowing by is estimated to be 1200 kg/s? a. 40.5 kW b. 48.6 kW c. zero – all lost in friction d. limitless – just need more…
A steel (E=30 Mpsi, ν=0.292) tire is shrunk over a cast-iron (E=13 Mpsi, ν=0.211) rim that is 1 inch thick with an outside diameter of 16 inches after the shrink fit. The final tire has a thickness of 3/8 inch. Given an initial radial interference of 0.1 inch, what is the hoop stress in the…
Describe the following heat treatment process for steel and for each the indented final microstructure: Full annealing Normalizing Quenching Tempering
use an inverse trig function to write alpha as a function of 15
A robotic pool cue is designed to carefully impart enough energy to a cue ball for the precision needed when playing billiards. The robotic pool cue consists of a pool cue and a spring (with a spring constant k = 18 lb/in.) that can be depressed a specific distance x and suddenly released,…
Dimensions are applied to the opposite side of the reference line as the weld symbol. Select one: a. true b. false
What do the numbers 2-6 indicate when they are placed on the right side of a fillet weld symbol? Select one: a. The pitch then the length of a weld required b. The length then the pitch of a weld required c. The length then the space between the welds required d. The size of the vertical and…
Describe the phase transformations that occur when a 1.0 wt% C steel is cooled under equilibrium conditions from 1100 degrees C (where it is fully austenite) to below 727 degrees C. Also, describe the microstructure at room temperature.
Air enters the 0.75 m^2 inlet of an aircraft engine at 80 kPa and 27 degrees Celsius with a velocity of 230 m/s. Determine the volume flow rate in m^3/s at the engine's inlet and the mass flow rate in kg/s at the engine's exit. The gas constant of air is R = 0.287 kPa*m^3/(kg*K).
WHY ARE ALL EXPERTS GIVING ANSWERS?? A throttling calorimeter is used to measure the dryness fraction of the steam in the steam main, which has steam flowing at a pressure of 8 bar. The steam, after passing through the calorimeter, is at a pressure of 1 bar and a temperature of 115°C. …
SOLVE BOTH CORRECTLY TO GET UPVOTE A liquid is heated at approximately constant pressure from 20°C to 80°C by passing it through tubes which are immersed in a furnace. The furnace temperature is constant at 1500°C. Calculate the effectiveness of the heating process when the atmospheric…
The disk A is pinned at O and weighs 22 lb. A 1-ft rod weighing 5 lb and a 1-ft-diameter sphere weighing 12 lb are welded to the disk, as shown. If the spring is originally stretched 1.5 ft and the sphere is released from the position shown, determine the angular velocity of the disk when it…
In MATLAB Fundamentals, how do we use the reshape function? Write the shortest statement that will extract the first row from m and store it in the variable z.
A 6,000 lb load is being pushed up an inclined surface with theta of 30 degrees. The coefficient of friction between the weight and inclined surface equals 0.15. what rod end pressure (in psi) is required to decelerate the 3 cylinder to 60 ft/min to zero velocity in 1/4 in. at the end of the…
Plot this expression for flow rate through a pulmonary capillary. Q/Qmax = 1 - (hv/ha)^4 where the 2*h refers to the capillary height at the venule end (exit) over the arteriole end (inlet). Plot this and note how quickly the venous pressure effect is minimized.
As the engineer in charge of installing new equipment in your plant, you were given the task of installing a new Turning Center. The machine is used to turn parts that start as rough castings. These castings can have off-center regions with a mass (m) as large as 0.4 ounces at a radius (r) as…
To indicate a part very accurately in a chuck, you should use _ jaw chuck
Create the following evenly spaced vector using the linspace() function to range from -π to π with 10 values and store it to variable x.
A two-stage series centrifugal pump is required for a fire engine discharging 60 1/s at a head of 75 m. The mechanical efficiency of the pump is 87% and the manometric head developed is 75% of the theoretical head. The specific speed is 40, the outlet vane angle is 30°, and the flow velocity is…
The blade tip and hub diameters of an axial flow turbine are 5.75 m and 2.5 m, respectively. It works under a net head of 20 m with an overall efficiency of 83% and hydraulic efficiency of 93%. If the turbine has a speed of 150 rpm developing 24 MW, calculate the inlet and outlet blade angles…
The water leaves the guide vanes of an inward flow reaction turbine at 12 and the width of the wheel at inlet is 310 mm. The external and internal diameters are 14 m and 0.7 m, respectively. If the velocity of the flow is constant at 2.2 m/s with a speed ratio of 0.68, find (1) the discharge…
As a technician, you're going to conduct multipoint inspections that will require you to look over the entire vehicle. What are the 2 most important safety items you should check every time you service a vehicle?
What would be the best way to flush out a brake system? If a customer were to ask is it worth the extra cost? How would you explain this to them?
Determine the energy of the H-atom in n = 1, 2 and 7 states.
If the stress values of a glass rod are tested with uniaxial tension and the four-point bending method, will the stress values be the same? If not which produces higher values and why?
Besides the transition temperature, what are other indicators of toughness from a Charpy test plot?
Describe the factors that influence the magnitude of the roll force. You are in charge of a rolling operation of a metal strip of 100 mm wide and 30 mm thick to a thickness of 10 mm in one pass. The roll radius is 200 mm which rotates at 100 rpm. Although you have several rolling machines of…
A sheet metal of 2 mm thick has to be bent to a radius of 20 mm. Assume that the material has a Young' modulus of 70 GPa and Yield strength of 400 MPa, estimate the engineering strain due to bending. If the minimum bend radius for the metal is R=6T.
Need help; please. To lay out a storeroom for Lean Pacing Lamp design project Storeroom and Inventory (Kanban)
For OTLF, G(s), nearly sketch the root locus using all required drawing guides. (You don't need to use a guide if it is not required) Scale your plot for 0-6 radians on the real axis and +/- 3 rad/s on the imaginary axis. G(s) =…
It is about supplying 2.72 kg of air per minute at an absolute pressure of 2060 kPa, starting from an initial absolute pressure of 100.95 kPa and a temperature of 26.7°C. If a two-stage compressor is used and the compression is adiabatic and the intercooling is ideal, find the shaft power (in…
Find the shaft power required (in kW) to compress 45.4 kg of air per hour adiabatically from an absolute pressure of 100.95 kPa and 15.6 C to an absolute pressure of 706.32 kPa. The efficiency of the compressor is 80%.
Design a compound gear train for a transmission where its input is a motor that delivers a 15 N-m of continuous torque at speeds between 1600 and 1900 RPM. The application requires less than 5 hours per day running, and no impact loading is expected. The transmission output must deliver at…
Prob 1. A heat pump has a cooling COP of 3.4 and a heating COP of 4.5. It draws 3.5 kW of electricity in cooling mode and 3.6 kW of electricity in heating mode. Calculate: - The cooling capacity in BTU/hr - The heating capacity in BTU/hr - The EER for cooling - The SEER for cooling.
Reminder: When a logarithm is written "log" without an explicit base, it is assumed to be base 10. (a) logâ‚„64 = 3 (b) logâ‚â‚€(1/10)
Identify the type of cable permitted in single-family and multi-family dwellings that cannot be used in applications where the cable is to be buried below ground, used in a structure greater than three stories, nor in commercial garages, movie theaters, places of assembly, elevator shafts among…
A spherical drop of oil has diameter of 0.20mm. Determine its volume in cubic meters
Refer to the AHU experiment. In a vapor compression cycle, a refrigerant enters the evaporator at -10°C and leaves at 5°C. If the refrigerant has a specific heat capacity of 2.5 kJ/kg-K, what is the heat absorbed by the refrigerant per kg?
A 1 B^(3) C 5 D 10 Select the twe answer choices that correctly answer the question.
a triangle. The area of this triangle can be fou led by (-7,-15),(-1,-3),(4,7) (in that order. )
I need help writing Arduino code and creating a circuit board for a robot that is built in TinkerCad. Task: Design a robot that is part of a team. This water robot is meant to put out fire by spraying water. It uses 2 sensors, a temperature sensor and an IR sensor. It also has a DC motor and a…
Simplify the expression using the division approach. ((5)/(7)-(7)/(6))/((3)/(10)+(11)/(7)) Show your work here
A 2nd or 3rd Order Mechatronic system (actuator, inverted pendulum, magnetic levitation, etc.) will have continuous time transmission. You need to evaluate and interpret the following items: a) Discrete-time for different sampling times (Ts=10, 0.1, 0.001) with MATLAB to obtain the transfer…
Now slide the "Damping" quickly all the way to "Lots". What happened to the Thermal Energy?
Problem 15.1: In designing a solar thermal system for space heating, it is determined that water will be used as a storage medium. If the water temperature can vary from 80 degrees F up to 140 degrees F, how many gallons of water would be required to store 1 x 10^6 Btu?
How much energy is required in kJ/kg for the water flow to generate saturated steam at 300 kPa and 133.52 oC?
What is a selective surface? How and why does it affect the efficiency of a solar collector?
QUESTION 2 Solve the proportion for the missing variable. Round to two decimal places as necessary. (4)/(x)=(17)/(25) QUESTION 3
Ch 9 Assessment: If a screw has a circumference of 16mm and a lead of 0.4mm, and you apply 15N of force, how many Newtons of force would be produced?
Learning Assessment Algebra 2, U.1: Identify the direction a parabola. In which direction does the parabola y=-(1/17)(x+6)²+1 open? Down right. Submit.
A wheel driven by two similar jets transmits 5000 kW to the shaft when running at 398 rpm. The head from the reservoir to the nozzle is 210 m and the efficiency of power transmission through the pipelines and nozzles is 92%. The jets are tangential to a 1.55 m diameter circle. The relative…
Draw the type of beam according to its support: Simply Supported Beam Cantilever Beam Continuous Beam Fixed End Beam Propped Beam
What will it take to defend public water from cyber attacks??
What thermodynamic region is water in at u = 2494.0 kJ/kg and T = 90.0 C? What thermodynamic region is water in at 115 C and 57.868 kPa?
Water at 60°F is flowing through a 0.12-inch diameter, 100-foot long vertical copper pipe at an average velocity of 10 ft/s. Determine the (a) head loss, (b) pressure drop, and (c) pump power. Note that the effect of potential energy is not negligible.
Suppose you budgeted $1950 for fuel expenses for the year. How many miles could you drive if gas were $3.25 per gallon and your vehicle averaged 30 miles per gallon?
Use definitions to support your answer. Assessment Practice 14. Look at these polygons. Part A Part B Name one attribute that all 4 polygons Name an attribute th have. have that B and C d
We found a new route for the pipes for the lab, but now we have to place the pump outside of the building to accommodate the changes. If the new pipe system uses 10m of 0.01m PVC pipe and connectors (with 3 - 90 degree flanged (K = 0.3), 2 - 45 degree long radius flanged (K = 0.2), and 6 - 180…
explain the thermodynamic Analysis of Mechanical Supercharging in Internal Combustion Engines
Research Proposal: Development and Performance Evaluation of a Solar Cooling System 1. Project Title 2. Motivation 3. Problem Statement 4. Literature Review 5. Research Aim and Objectives 6. Methodology 7. Work Plan: Research Activities 8. Limitations of the Study 9. Potential Research…
As a shop technician, you need to convert dimensions given as fractions to decimals on a blueprint of machined parts. The overall length of a part is 3(1)/(2) inches. What is the overall length, in inches, of the part expressed as a decimal?
Find the maximum sea-rise when the lowest atmospheric pressure is 0.85 bar, spatial mean atmospheric pressure is 1 bar, bay length is 5 km, bay mean depth is 5 m, maximum wind velocity is 50 m/s, and wind direction is 15 degrees.
0.65 in. 0.75 in. Knowing that 360-lb vertical forces are required to complete the pruning of a small branch, determine the magnitude P of the forces that must be applied to the handles when the shears are adjusted as shown. The magnitude of P is lb.
A car engine circulates coolant (assume water) through an engine at 80 gal/min. The coolant passes through the radiator (heat exchanger) and incurs a 10°C drop in temperature after entering the radiator at 100°C. The radiator frontal area exposed to air flow is 0.25 m^2. While driving at 35…
0.6 m3 Argon is contained in a piston-cylinder device at 1.2 MPa. Argon now expands until the volume triples and pressure halves. The gas constant for Argon is 0.208 kJ/kgK. Find the work from/to the spring within 4 sf and appropriate units. ive posted this question 3 times and have had 3…
For 1-2, define a variable and write an algebraic expression The total cost for a family to visit the The nun museum is $6, plus $4 per person. less than in the mus Define a variable: Represent the total cost of a museum visit:
If f(x) = log₃(x), what is the transformation that occurs if g(x) = -log₃(x)? (Enter s for stretch, c for compress, mx for mirrored across the x-axis, my for mirrored across the y-axis, r for shift right, l for shift left, u for shift up, and d for shift down.)
Water (ρ = 1000 kg/m3 and ν = 1 x 10-6 m2 /s) is transported to a residential area at a rate of 1.5 m3 /s through a 70 cm diameter horizontal concrete pipe with a surface roughness of 3 mm and a total length of 1500 m. a) Ignoring any minor losses, calculate the useful pumping power requirement…
It is argued that a refrigerator with an efficiency coefficient of 13.5 has been developed that keeps the refrigerated volume at 2 °C while operating in a room at 20 °C. Could this be true?
Q3-A Carnot heat engine takes 700 kJ of energy from a thermal energy store at 600 °C and heats a thermal energy store at 50 °C. a) The thermal efficiency of the Carnot machine, b) calculate the heat supplied to the low temperature thermal energy store?
500 kJ of heat is drawn per minute from the interior of a refrigerator, and the interior is kept at a temperature of 4 °C. Since the power required to operate the refrigerator is 2 kW; a) the efficiency coefficient of the refrigerator, b) calculate the heat transfer from the refrigerator to the…
There is 180 MW of heat transfer from the boiler to a heat engine. The heat that the heat engine gives as waste to a nearby stream is 100 MW. Calculate the net power and thermal efficiency of the heat engine.
When inspecting the location and orientation of the hole labeled “A,” which features should the inspector use to orient and locate the part?
Given the standard uncertainty of x and y coordinates is 15 µm, write a code in MATLAB to calculate the uncertainties associated with the radius and center coordinates. Please write a code in MATLAB that can be used for any coordinates and radius and include all the steps and full code. If you…
Please show everything on MATLAB. Thank you. Write a script that will generate random integers in the range from 0 to 50 and print them until one is finally generated that is greater than 40. The script should print how many attempts it took.
An car owner uses annually 4000 kg of fuel (assume C7H16). Assuming complete combustion, the annual production of CO2 in kg is:A. 10000 B. 12000 C. 14000 D. 16000 E. 18000
Please give a thorough solution. Thank you! The temperatures recorded during the summer and winter in a particular locality are 45°C and 15°C respectively. If air is used as a cooling medium with a temperature difference of 15°C, calculate the COP for heating and COP for cooling of the…
Write a MATLAB code to numerically solve the Laplace equation for the stream function, for the horizontal flow (u=U=3) past a cylinder (R=1/4) in a square domain (Lx=Ly=1) with infinite boundary conditions on the top and bottom edges.
if a flat transmission belt or a conveyor belt is running off a pully??
hot oil is to be cooled in a double-tube counter-flow heat exchanger. the copper inner tubes have a diameter of 2 cm and negligible thickness. the inner diameter of the outer tube (shell) is 3 cm. the cold fluid flows through the tube and the hot fluid through the shell. taking the average…
An engine working on the otto cycle has a suction pressure of 1 bar and a pressure of 14 bar at the end of compression. Find (i) Compression ratio (ii) Clearance volume as a percentage of cylinder volume (iii) The ideal efficiency and MEP if the pressure at the end of combustion is 21 bar.
Hot oil is to be cooled in a double-tube counter-flow heat exchanger. The copper inner tubes have a diameter of 2 cm and negligible thickness. The inner diameter of the outer tube (shell) is 3 cm. The cold fluid flows through the tube and the hot fluid flows through the shell. The convective…
Consider a rigid container of 3 m3 which contains water. Determine the mass (in kg) of water at 4 MPa and 500°C.
Hydraulic cylinder with excess oil on the cylinder rod indicate what
Two parallel shafts with 4 in. center distance are connected with 20-degree, 6-pitch spur gears, providing a ratio of speed of -3.0. a) Determine the pitch circle diameters and the number of teeth on the pinion and gear. b) Establish if there will be interference from using standard full-depth…
Develop an expression for temperature drop of a metal flowing in a straight channel of square cross-section (side: a) of length L in a water-cooled die. Assume that mold temperature is constant at T0, the metal enters the channel at a temperature Ti and exits at a temperature Tf. Will…
A machine of mass 500 kg is supported on a beam which deflects 2.5 mm statically at the load. The machine has an out-of-balance mass of 5 kg rotating at a 200 mm radius at a speed of 500 rpm. Neglecting the mass of the beams, find the amplitude of the forced vibration of the machine. To what…
For a 1.5 kg cube-sat with a frontal cross-sectional area of 100 cm^2 and a drag coefficient of 3, if the estimated conservative lifetime is 5 years, then find the estimated altitude of the cube-sat.
Calculate the total deltaV required for an orbital transfer from 500 km (i = 0, equatorial plane) to 2000 km (i = 45 degrees); a) Using Hohmann and simple plane change separately b) Using combined Hohmann and plane change
an off ramp for a motorway has a radius of curvature of 60m. if the coefficient of friction is 0.4N. what is the maximum speed that a car can take the ramp at
The algae Lemna is being grown on the surface of a wetland used for wastewater treatment. This organism has a doubling time of 36 hours under present conditions. The initial mass of algal seed is 20 g. (1) Please develop MatLAB codes to calculate how long it will take to attain the algal mass…
what is the main advantage of grease over oul is the grease
An industrial pollutant enters a small stratified lake through the sewage system. The vertical profile of pollutant concentration is measured in the lake as listed below: Depth (m): 0 1 2 3 4 5 6 7 8 9 Pollutant Conc. (Micromoles/m3): 4.9 5.2 5.1 4.9 3.2 2.9 2.6 2.4 2.1 1.8 The laminar…
Estimate the velocity with which a 200 lb person would contact the ground if they jumped from an airplane at an altitude of 2,000 ft and including air-resistance.
Ammonia is used in a reverse Carnot cycle refrigeration with reservoirs at 110 F and 10 F. 1000 Btu/hr are removed. a. Find the COP b. Work Input c. Heat rejected
A calorically perfect gas at location 1 with p1 = 100 kPa, u1 = 500 m/s, T1 = 300 K turns through a 30° expansion corner. Find the fluid properties after the expansion at location 2 (p2, T2, r2) and velocity components.
Find the lift and drag forces on a flat plate, of chord length 2 m, depth 10 m inclined at 20° to the horizontal in a freestream of M1 = 3, p 1 = 100 kPa, T 1 = 300 K.
Reflectivity of semiconductors decreases as temperature increases because their conductivity increases. So, in this case, why is the reflectivity of metals high?
Make four sketches for different ideas that can secure recycling and filament extrusion to produce micro 3d printed materials. Show essential parts in each sketch.
A submarine is cruising just below the surface (depth of 6.3 m) of the Arctic Ocean (specific gravity of sea water is 1.031) on a normal day (atmospheric pressure is 99.35 kPa, ambient temperature is 25°C). It practices an emergency dive to a depth of 203 m. What is the change in pressure (in…
The air-fuel mixture is burned between a pair of parallel quartz sheets that are 20 mm apart. The tube has a square profile with dimensions of 40x40. The properties of the unburnt mixture are 293 K, 1 atm, and 29 kg/kmol, and the flow speed is 55 m/s. What is the turbulent flame speed if the…
How much energy must be removed from the bathroom to return it to its initial conditions from the peak temperature? Initial conditions (69.12°F, humidity 62%) Peak conditions (74.25°F, 91%)
Using Matlab and Simulink, build a feedback control system for a rotating motor with a connected link. The system should be able to track the position of the tip of a connected link as a function of time. The motor and linkage parameters are unspecified.
List 3 benefits of using program flow instructions in the PLC program
The wear coefficient for an artificial hip joint with hardness 1.8 GPa and 11 cm radius is reported to be 10^-7. If a 160 lbs person walks an average 1 million steps with an average of 60° of rotation at the hip per step, calculate the total wear volume in 10 years. 2. A human knee joint…
Identify the main latent failures in the M1 Air Disaster (The BAC1-11 Windscreen Accident). Categorize them using a human error classification of your choice and justify your answer.
Calculate the shell diameter for a 2-tube passes tube bundle, with a total of 50 tubes. the tubes are on a triangular layout with a diagonal pitch of 1.25"
Air at 50 °C and M=0.5 is accelerated to M=0.8. If the static temperature is 100 °C at this point how much energy per unit mass must be added to or rejected from the flow?
In double pipe heat exchanger design we have hydraulic diameter and equivalent diameter. what difference between these two diameters? where are they used in design calculations?
The motion of a rigid body constrained to rotate about a fixed axis that does not pass through its mass center is called non-centroidal rotation.
Q2) The volume of oxygen with a pressure of 8 MPa and a temperature of 200 K is 0.3 m^3 and the volume of nitrogen with the same pressure and temperature is 0.4 m^3. After mixing nitrogen and oxygen, the final temperature of the mixture is 200 K and the pressure is 8 MPa. The final volume of…
I am writing a lab report on the specific heat ratio for an ideal gas. Could you give me a summary of what a calorimeter is and how it can be used?
A horizontal pipe with a cross section of 25 cm is 100 meters long. Oil flows through at Q = 0.491 cubic meters per second. The viscosity of the SAE - 10W oil at 20 degrees celcius is 0.1 Ns/m^2 and the density is 92% of water's density. We can assume that the pipe is smooth. a) Is the flow…
A bevel spur gear bearing with an intersection angle of 90 degrees, room 4 mm, tooth enlargement z_{1} = 18 z_{2} = 54 tooth width b = 20 mm; a) Find the number of teeth of the equivalent straight teeth, b) Find the average house, pitch circles and average pitch circle diameters, c) The…
For a crank-slider mechanism with a time ratio, Q = 1.37, a stroke of (ΔR4)max = 46 millimeters, and the time for the mechanism to complete one full cycle, t = 3.4 seconds, calculate the imbalance angle, β (in degrees), the crank speed, ω2 (in revolutions per minute), and the time required…
A bevel gear mechanism with an intersection angle of 90 degrees, a modulus of 4 mm, number of teeth z1 = 18, z3 = 54, tooth width b = 20 mm; a) Number of teeth of equivalent spur gears, b) Average modulus, division circles and average division diameters, and average division circle diameters,…
Consider a two-stage chemical rocket with a total initial mass of 14,700 kg and a total structural mass of 1,809 kg. The structural coefficient is 0.13 and the payload factor is 0.3. The structural coefficient, payload factor, and equivalent exhaust velocity are the same for both stages in a…
Air at 800 m/s, 100 kPa, 300 K passes through a normal shock. a) Calculate the velocity, temperature, and pressure after the shock b) Calculate the temperature and pressure if this air were isentropically decelerated to the same velocity you found in part a. Please do both parts.
Examination of a conical spur gear mechanism with an intersection angle of 90 degrees, a modulus of 4mm, number of teeth z1=18, z2=54, tooth width b=20 mm. FIND a) The number of teeth of equivalent spur gears b) The mean modulus, dividing circles, and average dividing circle diameters …
Water at 20°C flows in a rectangular open channel, as shown. At station 1, the channel width is 1.9 m and the depth of water is 1.2 m. At station 2, the channel bottom has been raised by 0.3 m as shown, and its width is also reduced to 1.6 m. The water depth at this station is 0.8 m. Assuming…
Hi there, what's the name of the highlighted circles from 1 to 7?
Dear Chegg team, I need a detailed write-up with project topics on LAB ANALYSIS OF GRANITE AGGREGATE CONCRETE PRODUCTION. Based on the following headings: I) Introduction II) Background of the study III) Statement of problem IV) Aims and Objectives V) Literature reviews With references.…
Determine the shaft kW for an 80 percent efficient pump to discharge 0.11 liter/s water through the system. The system losses, exclusive of pump losses, are 12V^2/2g, and H = 16 m.
The stroke volume of a 4-cylinder 4-stroke engine is 1.22 liters. In this engine, the average piston speed is 10 m/s, the indicated pressure is 800 kPa, and the airflow into the cylinders is 45 g/s. Calculate the volumetric efficiency of the engine since the mechanical efficiency is 80% and the…
A force of 200 lbf causes a 0.75-inch by 1.25-inch magnesium rod to elongate from 0.75 inches up to 1.5 inches. Calculate the modulus of elasticity in psi.
Module: Product Lifecycle Management TOPIC: Design report on Thermal Imaging Fixed-Wing Drone for spotting fires Answer the following on the report: i. Problem or customers' need Assessment: Clearly indicate the methods used to identify a product or customers' need that your product will…
A lift with a mass of 1200 kg is raised to a height of 100 meters by a winding drum of diameter 400 mm. The rotating parts have an equivalent mass of 200 kg and an equivalent radius of gyration of 180 mm. The mass of the cable is 3 kg/m. The lift has an initial acceleration of 2.5 m/s^2. The…
In a single-stage axial flow turbine, the inlet pressure of the burned gases is 1900 kPa, the temperature is 1200 K, the cross-sectional area is A1 = 0.1131 m^2, the outlet velocity from the stator is 600 m/s, and the angle a2 is 650°. Assuming that the gas angle B2 at the rotor inlet is 250°…
A piston-cylinder device initially contains 0.7 kg of air at 150 kPa and 27 °C. The piston is resting on a pair of stops. The mass of the piston is such that a pressure of 350 kPa is required to move it. The air is now heated until its volume has doubled. i. Determine the temperature of the…
Please solve as soon as possible. Assume 5000 kPa, 2100 K conditions after combustion in an Otto cycle with a compression ratio of 10:1; the inlet temperature is 300 K. Find the engine power, efficiency, average effective pressure, and other temperatures in the cycle, and then find the average…
A well-insulated turbine, operating at steady state, has steam for its working fluid. The steam enters at 40 bar with a temperature of 700°C and velocity of 70 m/s. The fluid exits as a two-phase vapor at 1.0 bar, x = 0.90, and a velocity of 20 m/s. The inlet piping has a diameter of 0.10 m.…
An expression for flow rate through a pulmonary capillary. We could manipulate that into the form: Q/Qmax = 1 - (hv/ha)^4 where the 2 * h refers to the capillary height at the venule end (exit) over the arteriole end (inlet). PLOT this and note how quickly the venous pressure effect is made…
Determine the key length of square key for gear driven shaft to withstand a torque of 3220 N-m. The shaft diameter is 70 mm with design stress of 70 MPa in shear, the thickness and width of key is 15 mm. (A) 6.7 cm (B) 77 cm (C) 88 cm (D) 8.8 cm
A shaft whose diameter is 56 mm rotating at a speed of 220 rpm and power to be transmitted is 47 kW at steady load. Assuming a 14 mm x 14 mm x 90 mm square key is used, determine the factor of safety used in the key if yield point in shear is 275 MPa. (A) 3.75 (B) 4.75 (C) 5.75 (D) 7.75
A Venturi tube is used to measure flow rate of 42 l/s. Tube diameter is 120 mm and throat diameter is 70 mm. Water density is 1000 kg/m3. Calculate the pressure difference Δp = p1-p2 between the tube and the throat, using continuity equation and Bernoulli's equation. Round off the answer to…
1 kg of Air , modeled as an Ideal Gas , undergoes a process from a pressure of 1 bar and a temperature of 300K to a final state where its pressure is 3 bar and its temperature is 1100K. Calculate its change in enthalpy.
A car is parked on a summer day at noon time under the sun. It can be assumed that heat Qsolar = 750 W is transferred into the car by solar radiation. This heat raises the air temperature inside the car. However, at the same time, the car also loses heat Qconv to the surrounding air from the…
An industrial fan running at 600 rpm is driven by a 25 kW, 1260 rpm induction motor. The pulley mounted on the motor shaft is 280 mm. The center-to-center distance is 1.55 meters. Use f = 0.35 A. Determine the minimum angle of wrap. (A) 148.6° (B) 158.6° (C) 168.6° (D) 188.6°
Example 6.1: Determine the second moment of area I for the following T-shaped cross section. For all these types of problems it is best to adhere to the following methodology when solving them
a) Calculate the total heat transfer coefficients (U = W/m2K) for the Atmosphere Contacted External Wall and Earth Contacted External Wall, whose building components are given below. b) How many meters of panel radiator with a unit heat output of 1100 W/m are required for a room with a total…
7-) In a reciprocating cylinder, in the initial state, the mass of 3 kg refrigerant (R-134a) is at a pressure of 1 MPa and a temperature of 70â°C. As a result of heat transfer to the environment at constant pressure, the refrigerant becomes liquid at 40â°C. The pressure of the environment is…
3-) 2 kg in a closed container of constant volume, initially at 120ºC, 50% dryness. There is water. As a result of heat transfer from the environment with a temperature of 500ºC to the container, pressure is 300 kPa. T(K) = 273.15 + ºC
6-) Air enters an adiabatic nozzle at a pressure of 350 kPa and a temperature of 1200 K. At the outlet, the pressure of the air is 100 kPa and the temperature is 650 K. The speed of air entering the nozzle Since the output velocity is negligible and the specific heats are constant, a) Find the…
(a) Discuss room temperature compensation in the context of thermocouple measurements. (b) The leads of a single K-type thermocouple immersed in a beaker containing warm water record a voltage output of 1.038 mV when the room temperature is 30°C. What is the temperature of water in the…
It is required to measure wall heat flux in a flat plate laminar boundary-layer experiment from LCT images in an inverse technique framework. Flow is arranged in a low-speed wind tunnel. Propose the experimental details, optical configuration, and data analysis required in this context.
A 4 cm thick plate generates thermal energy at a rate of 5 MW/m³. One side of the plate is perfectly insulated, and the other side is maintained at a temperature of 100°C. If the thermal conductivity of the plate is 75 W/m·K, find the maximum temperature of the plate.
Homer Simpson was taking his bath when the soap slipped. Out of curiosity, the soap was stagnant on his belly, which forms an angle of 45° with the horizontal. The soap has a mass of 100 g and the base in contact with the belly has an area of dimensions 4 mm wide by 7 mm long. The film of…
A 4 cm thick plate generates thermal energy at a rate of 4.2 MW/m³. One side of the plate is perfectly insulated and the other side is maintained at a temperature of 50°C. If the thermal conductivity of the plate is 73 W/m-K, find the maximum temperature of the plate.
Explain with the help of sketches the steps carried out to align the part coordinate system with the machine coordinate system.
Solve for relative humidity in decimal, humidity ratio in gr/lbm, enthalpy in BTU/lbm, specific volume in ft^3/lbm, and dew point temperature in °F. Given dry bulb temperature of 75 °F, wet bulb temperature of 62.53 °F, and pressure of 14.67 psia by hand.
Thando is a young entrepreneur who has just opened her own company. She manufactures bricks for the local community. She currently produces approximately 200 bricks per day. She uses low-skilled labor from the local community for production. The brick-manufacturing process is highly…
Another machine in the shop uses a vertical light curtain that is located 325 mm away from the machine. This machine has a worst stop time of 50 ms, the control system has a worst stop time 68 ms, and the response time of the safeguarding device is 32 ms, and the resolution of the machine is 37…
distinctive levels with their examples, that condition monitoring can be carried out
An apple is dropped from 1000 m above ground level and hits a pillow on the ground (assuming air resistance and pillow height are negligible). Draw the time history of acceleration of the apple before and after it hits the pillow, assuming the contact time is 0.2 seconds when the apple hits…
The bob of a pendulum has a mass of .25kg. if this pendulum is 1.0m long, what is its frequency?
DESCRIBE THE MOTION OF A RIGID BODY ABOUT A FIXED AXIS, CALLED THE ROTATION AXIS
Calculate the transition rates of the absorption and emission of radiation. Also, show that the free electrons can neither emit nor absorb photons.
What does the Greek letter delta (Δ) mean? 1. a change in something 2. the displacement of an object 3. an angle in a triangle 4. the time interval between two events
Styrofoam box is filled with ice. The box size is 25x40x100 cm and the styrofoam k = 0.033 W/m°C. The thickness of the walls is 5 cm. The outside temperature is 25 °C (h = 10 W/m°C). What is the time when all the ice is melted? Can I have all the steps in calculation and the answer? This is…
The blood sugar (glucose) level of a diabetic patient is approximately 0.140 g of glucose/100 ml of blood. Every time the patient ingests 40 g of glucose, her blood glucose level rises to approximately 0.240 g/100 ml of blood. A.) Calculate the number of moles of glucose per mL of blood before…
Problem 2. A particle moves in simple harmonic motion with an amplitude of 7.5 cm. if it makes 27 full oscillations each minute, then what are the speed and acceleration of the mass when it is 5.5 cm from equilibrium?
The time period T of a simple pendulum depends on: a. the mass of the bob b. the angle c. the length of the pendulum d. type of material of the bob (iron, wood, etc.) e. All of these
Show the calculation to determine the angle of the track with respect to horizontal. Data: Thickness of block, l = 3.7 cm Distance between track legs, d = 60 cm
Problem 4: Suppose an indicator light on a DVD player has a resistance of 134 Ω. How many volts are supplied to operate it, given that 27 mA passes through it?
Problem 5: A high-voltage electricity transmission line is hung from metal towers with glass insulators having a resistance of 1.1 × 109 Ω each. Randomized Variables R = 1.1 × 109 Ω V = 175 kV What current, in milliamperes, flows through an insulator if the voltage is 175 kV?
Problem 11: A cauterizer, used to stop bleeding in surgery, supplies 1.75 mA at 16 kV. Part (a) What is its power output, P, in watts? Part (b) What is the resistance, R, of the path, in megohms?
Consider a person with a mass of m who is in the space station with artificial gravity. When he is in the occupied outer ring, his simulated weight in newtons is 1/2 mg = 303 N. Suppose that he climbs to a position in one of the radial tunnels that leads to the center of the station. Let R be…
Problem 18: If you try and measure the voltage of a battery with a voltmeter connected in series, you won't get a completely accurate measurement because of the internal resistance of the battery. To see how large this effect is, consider trying to measure the terminal voltage of a 1.585 V…
Problem 20: An uncharged capacitor with C = 15 μF and a resistor with R = 45 Ω are connected in series with a battery of ε = 3.5 V. Randomized Variables C = 15 μF R = 45 Ω ε = 3.5 V Part (a) Express the time constant τ in terms of R and C. Part (b) Calculate the numerical value of τ in…
In India, why do people always try to follow American culture? Why don't they love their own beautiful religious traditions?
A force is being applied at an angle of 45° with respect to a wrench, at a position midway between the bolt and the end of the wrench. Which of the following are ways you can increase the torque on the bolt?
Please explain it clearly, please. I want to understand it.
Please, I need an explanation. You walk in a certain direction at an average velocity of 2 m/s for 5 seconds. You then run in the same direction at a constant velocity of 6 m/s for another 5 seconds. a. What is the total distance traveled? b. What was the average velocity for the entire…
A mirror is intended to produce an erect image of your face 2.5 times its actual size when your face is 30 cm in front of it. A.) Should the mirror be concave or convex? B.) What should its radius of curvature be?
Under what circumstances does a concave mirror produce a real image of a real object? a virtual image?
A.) A concave mirror has a radius of curvature of 30 inches. What is it focal length? A convex mirror has a radius of curvature of 30 inches what is its focal length?
1.) what does a negative magnification signify? a magnification that is less than one? 2.) A moth flies towards a convex mirror. Does its image become larger or smaller as it approaches the mirrors focal point? what kind of image is it? Solve both. Thanks!
rue, becase -4 is greater than or equal to 1 . -4>=1
Two objects of masses 10 kg and 18 kg are hung from the ends of a stick that is 70 cm long and has marks every 10 cm, as shown. 10 kg 18 kg ABCDEF G 10 20 30 40 50 60 If the mass of the stick is negligible, at which of the points indicated should a cord be
If we place a UV flashlight on one side of a UV protective lens and the spectrometer probe on the other side of the lens, we would expect to... a. to see light to no UV light transmitted because it was absorbed by the lens. b. to see very high peaks in the UV part of the spectrum due to the…
A Cu sphere with radius r1 is charged with electric charge Q. Concentric to this sphere are two spherical shells: an intermediate shell of Al with inner and outer radius r2 and r3, respectively, and an outer shell of Au with inner and outer radius r4 and r5, respectively. The spokes comply with…
Consider a loop of wire with an area of 0.50 m2 in a magnetic field that begins with a strength of 4.0 T as pictured above. The magnetic field is decreasing in strength at a rate of 0.5 T/s. What is the induced EMF in the loop of wire? a. 0 V b. 0.25 V c. 2.0 V d. 4.0 V
Most grass and trees appear green to the human eye because that is the part of the visible spectrum that they a. absorb b. reflect or transmit
(v+2)^(2)-64=0 Ify your answer as there is more than one solution, there is no solution.
which of the following is the magnitude of the vector (1,-2)?
What is the electric potential at 1.00 m from a point charge (-15.0) nC
An object was elevated a distance of 6.5 m, resulting in 1300 J of work.
A.) Can a diverging lens even form an inverted image of a real object? B.) Can a converging lens? 2. A double convex lens has surfaces whose radii are both 50 cm. The index of refraction of the glass is 1.52. Find the focal length of the lens. Solve both.
Two horizontal forces act on an object. One force (F1) has a magnitude of 75.0 N and is directed due 30.0° south of east. Another (F2) has a magnitude of 55.0 N and is directed due 70.0° north of west. What is the magnitude and direction of the sum of the two forces (ΣF = F1 + F2)?
A microscope has an objective of focal length 4 mm which is used with a 15x eyepiece. If the image distance for the objective is 160 mm, find the magnification of the instrument. 2. If the screen is moved closer to a movie projector, how should the projector's lens be moved to restore the…
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