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Physics 101 Mechanics
May 2023
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Physics 101 Mechanics Q&A Archive of May 2, 2023

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May 2 of 2023

A parallel-plate capacitor has teflon between its conducting plates. What will be the area of these plates if they have a separation distance of 5 mm and the capacitor yielded a new capacitance of 5.7 uF after the insertion of teflon?

A block of mass m is initially at rest at the top of an inclined plane which has a height of 7.07m and makes an angle of θ=19.3° with respect to the horizontal. After being released, it is observed to be traveling at v=0.99m/s a distance d after the end of the inclined plane, as shown. The…

Unpolarised light of intensity \( I_{0} \) passes through a polariser and then through an analyser rotated at \( 60^{\circ} \) from the polariser. The intensity of the light exiting the analyser is \( I_{A} \). Calculate the ratio: \[ \frac{I_{\mathrm{A}}}{I_{0}} \]

How much force is generated by a 5-in diameter cylinder with a 1 in diameter Rod if you provide 75 PSI on the blind end of the rod

please explain

Using Boyles law, calculate the final pressure when given an initial gauge pressure of 90 psi, a starting volume of 1440in ^3, and a final volume of 144in ^3

how to convert mmHg to Pa?

Given a cylinder with a 4 inch bore and a 1 inch diameter rod, calculate the annular area of the rod side

Cylinder diameter is 6 inches and a stroke length of 2 feet and flow rate of 1/2 gallon per minute, calculate the time for the cylinder to fully extend

A spring will compress 5.60 cm when supporting a mass of 1,075 kg. This same spring is attached to a 1000.0 kg mass and laid horizontally on a frictionless surface. It is then stretched to 10.0 cm in the negative direction. If timing starts as the spring goes through equilibrium, what is the…

Question 3 [Soalan 3] A boy at point \( A \) attempts to throw a ball over the roof of a barn with an initial speed of \( v_{A}=15 \mathrm{~m} / \mathrm{s} \) as shown in Figure 2. Determine the angle \( \theta_{A} \) at which the ball must be thrown so that it reaches its maximum height at \(…

A chemical engineer is intrested in detarmining the operating condith that maximise the yoeld of a process. Tevo controlable variable infiuence the poocess yaeld that is react time \& temp. The f)engineer is currently operating the process with a react time of 35 minutes \& a a temp. of \( 135…

system

1. Refrigerant- \( 134 \mathrm{a} \) enters the compressor of a refrigerator as superheated vapor at 0.20 \( \mathrm{MPa} \) and \( 25^{\circ} \mathrm{C} \) at a rate of \( 0.07 \mathrm{~kg} / \mathrm{s} \), and it leaves at \( 1.2 \mathrm{MPa} \) and \( 70^{\circ} \mathrm{C} \). The…

Calculate the reaction forces for the anchor beam given in the figure. F1: 57.5 F2: 46 q1: 45 q2: 46 M:230

Calculate the reaction forces in the overhanging beam given in the figure. F: 46 M: 138 q:72

Geometry of the area given in the figure center and the horizontal and moments of inertia about their vertical axes find it. a: 483 mm

a mass K of m kg, a mass of n kg a P scale pan, pulley and string assembly A scale was created using Length of BCK rope LBCK meters given as. s value in the table scale given in meters Calculate the mass D in the pan. Neglect the size of the hoop. m: 21 n:4.2 L:2.82 Lbck:3.76 s:1.41

Two blocks (10 kg and 40 kg) are joined together by a rope as shown in the picture below. The blocks rest on a frictionless horizontal surface and are pulled by a force of 70 N which points to the right. a) Draw an accurate force diagram for each block. Indicate any forces that are equal…

Calculate the theoretical force output in the circuit if the system pressure is 3450kPa (500psi), the input force is 1748N (393lbs), and there are 3 cylinders, all with a 2.54cm bore × 1.59cm rod (1 inch bore × 0.625 in rod)

Find the magnitude of the force needed to accelerate a 158-g mass with a = -0.248 m/s2 i + 0.247 m/s2 j.

What is the amplitude

Type question here (Keep it short & clear to get the best answer)

1. Write vector ? in component form. Include units and answer in two significant figures 2, Write the resultant vector ? = ? + ? + ? in component form, with units, to two significant figures 3. Find the magnitude of ? to two significant figures, and give its angle of inclination to the…

7 Determina?i lungimea ipotenuzei unui triunghi dreptunghic isoscel cu cateta de: a \( 12 \mathrm{~cm} \); b \( 20 \mathrm{~cm} \); c \( 9 \sqrt{2} \mathrm{~cm} \) d \( x \mathrm{~cm} \).

Two disks of the same radius R=0.40 m and masses m1=7.0 kg and m2=21 kg can rotate without friction about the same vertical axis (see fig. 2), initially both disks are at rest. On the first disk acts, during t=3 s, a force tangential and constant F=28 N. Then the second disk is placed in…

Electric Field Calculation 1. Two point charges are arranged on the \( x-y \) coordinate system Practice Exercise \( q_{1}=3.0 \times 10^{-9} \mathrm{C} \) at \( (0,3 \mathrm{~m}) \) and \( a_{2}=-9.0 \times 10^{-9} \mathrm{C} \) at \( (4.5 \mathrm{mi}, 0) \) as follows: b. What is the force at…

Electric Field Calculation 1. Two point charges are arranged on the \( x-y \) coordinate system \( c_{1}=3.0 \times 10^{-9} \mathrm{C} \) at \( (0,3 \mathrm{~m}) \) and \( q_{2}=-9.0 \times 10^{-9} \mathrm{C} \) at \( (4.5 \mathrm{~m}, 0) \) as follows: b. What is the force at the origin if the…

Determine the moment of inertia of a rectangular thin homogeneous sheet in with respect to the OX-axis that passes through its center of mass, as shown in figure 1 quetion five

You have a dual acting cylinder with a rod diameter of 1 inch and a cylinder diameter of 4 inches. What pressure is required to produce 1000 lbs of force on the rod end of the cylinder?

Calculate the theoretical force of extension for a cylinder with a 5 inch bore and a pressure of 1800psi.

1. 108 identical books have a mass of \( 30 \mathrm{~kg} \). Find BASICLEVEL (ii) the number of such books that have a mass of \( 20 \mathrm{~kg} \).

Which is not an advantage of pneumatic motors? Can be stalled without damage Lighter than comparable electric motors Noise reduction compared to electric motors Adjustable speed

how to solve it?

please answer

two light vertical springs 1 and 2 of stiffness k and 2k are connected to a light horizontal rod at its two ends

A car traveling at 35.0 mph increases speed to 65.0 mph in a time of 7.75 sec. Which of the following is (are) true?

A ball is thrown with an initial velocity of 30.0 m/s at an angle of +60.0º. Determine the horizontal displacement 1.69 sec after it is thrown. a) +50.7 m b) +14.0 m c) +64.7 m d) +25.4 m e) +43.9 m f) -36.7 m g) +36.7 m h) +39.3 m

From the velocity versus time graph, determine the total displacement of the object during the first 40 sec of its motion. a) -175 m b) -62.5 m c) -25 m d) 0 m e) 113 m f) 288 m g) 600 m

For the given velocity versus time graph, determine the average acceleration from 5 to 35 sec, and the instantaneous acceleration at 25 sec. a) aavg = +0.67 m/s2, aat 25 = +1.00 m/s2 b) aavg = +0.67 m/s2, aat 25 = 0 c) aavg = 0, aat 25 = 0 d) aavg = +0.29 m/s2, aat 25 = +1.00…

For the given position versus time graph, determine the average velocity from 2.0 to 5.0 sec, AND the instantaneous velocity at 5.0 sec. a) vavg = +0.50 m/s, vat 5 = +2.7 m/s; b) vavg = +0.22 m/s, vat 5 = -2.7 m/s; c) vavg = +0.17 m/s, vat 5 = +2.7 m/s; d) vavg = +0.17 m/s, vat 5 =…

Type question here (Keep it short & clear to get the best answer)

what is Archimedes principles

two objects, with masses m1 and m2 are originally a distance d apart. The magnitude of the gravitational force between them is F. The masses are changed m1/2 and m2/2 and the distance is changed to d/4. what is the magnitude of the new gravitationally force?

Type question here (Keep it short & clear to get the best answer)

a particle starts from the origin at t=0 with an initial velocity having an x component of 20 m/s and a y component of -15m/s. The particle moves in the xy plane with an x component of acceleration only, given by ax=4m/s2 . What is the speed of the particle at t=5s ?

In arc welding process, it is necessary to design a suitable power source to produce enough heat to melt the joint and to generate a stable arc and metal transfer. The welding processes require high current (50-300A) at relatively low voltage (10-50V), the high voltage mains supply (230 or…

Type question here (Keep it short & clear to get the best answer)

A ball is thrown directly downword with an initial speed of 10 m/s from a height of 20m. How many seconds later does the ball strike the ground? (g=9,8)

A particle moves along the x axis according to the equation x(t)=5+7t+3t2 where x in meters and t is in seconds. At t=2 s, what is its velocity?

Type question here (Keep it short & clear to get the best answer)

A student designs a marble roller coaster . The 17.3 g marble starts from the rest at point A, which is at a height of 2.83 m , travels on the tracks on point C, where it is travelling at 0.20 m/s. Assume the track is frictionless from the point A to B but experiences a force of friction 15 N…

Type question here (Keep it short & clear to get the best answer)

A student pushes a garbage can with an applied force of 241 N at an angle of 27.6 degree below the horizontal. A 99 N force of friction also acts on the garbage can. If the garbage can moves 8.5 m horizontally, calculate the total work done on the garbage can. Remember that you should be able…

An object in a horizontal surface was moved by applying a constant force (in Newtons), F =8i ̂+5j ̂. If the object was displaced 9 m to the right, determine a. The work done by the applied force on the object. b. The angle at which the force is applied.

help

The pipe system shown in the figure is supported by fixed joint at points O. Calculate the followings: (a) Replace the force-couple system acting on the pipe by a resultant moment and a single force acting on Point O. (b) Replace the force-couple system acting on the pipe by a wrench…

In figure, there is a single rigid beam supported at two points: A and B. Calculate the reaction forces at the supports A and B. Neglect the weight and thickness of the beam. Note: Point A – pin connection Point B - roller support contact with smooth surface

Static Please, I have very little time and I have to hurry.

Static

Type question here (Keep it short & clear to get the best answer)

The position of an object moving along an x axis is given by x = 13 + 10t - 12t 2 + t 3, where x is in meters and t is in seconds. At what time after starting does the object instantaneously stop for the first time?

A M = 24.0 kg block is connected to an empty m = 2.00 kg bucket by a cord running over a frictionless pulley as shown in the figure. The coefficient of static friction between the table and the block is 0.44 and the coefficient of kinetic friction between the table and the block is 0.33. Sand…

This was last years exam question

Type question here (Keep it short & clear to get the best answer)

If a→=4i^+7j^-5k^ and b→=3i^+4j^+k^, find the direction cosines of a→-b→.

how to solve it?

Find the constant horizontal force \( P \) required to move a body weighing \( 1600 \mathrm{~N} \) along a level floor (friction constant \( =0.4 \) ) a distance of \( 30 \mathrm{~m} \) from rest in 5 seconds.

9. An excited \( \mathrm{H} \) atom is in a \( 5 \mathrm{~d} \) state. (a) Name all the states to which the atom is "allowed" to jump with the emission of a photon. (b) How many different wavelengths are there (ignoring fines structure)?

The piping system include a sharp-edge entrance, a sharp-edge exit an egular screwed 909 elbows. The flow is from the right to the left. The pump delivers a head of 460m to the fluid, pump efficiency is 85%. Fluid in the system is water at 200C. Include minor losses. (6-cm-dia is roughly…

Two blocks, m1=10.5 kg, m2=6.5 kg are arranged on an inclined plane (θ = 30◦) as shown above. Assume the masses are attached with a wire of negligible mass. Assume the pulley’s mass is negligible. The plane has a coefficient of kinetic friction, μk=0.20. Assume the blocks start from rest and…

Calculate the theoretical force of extension for a cylinder with a 3 cm bore and a pressure of 440 kPa.

Calculate the theoretical force of EXTENSION for a cylinder with a 2.5 in bore and a pressure of 1,020 psi.

Calculate the theoretical force of extension for a cylinder with a 3.5 in bore and a pressure of 1,200 psi. Round your answer to the nearest tenth.

Calculate the theoretical force of retraction for a cylinder with a 11 cm bore, 7 cm rod, and a pressure of 330 kPa. Round your answer to the nearest tenth.

An object in a horizontal surface was moved by applying a constant force (in Newtons), F =8i ̂+5j ̂. If the object was displaced 9 m to the right, determine The work done by the applied force on the object. The angle at which the force is applied.

Static Question (I have no too much time.)

Calculate the theoretical force of retraction for a cylinder with a 5 in bore, 0.75 in rod, and a pressure of 325 psi.

Calculate the minimum pressure needed to support a load of 1,200 lbs in the retracted position with a cylinder bore of 4 inches and a .75 inch rod. Round your answer to the nearest tenth.

patulong please po Nonsense=report Learning Task 2: COLOR IT RED Directions: Read and identify the following words and statements below. Color the words/statement with rec if if describes the arts and crafts of India specifically Rangoli, Diwali candle, Kathak and Mendhi. 1, Colorful 6.It…

a man tied a bunch of helium balloons to a lawn chair and flew to a great altitude of single balloon is estimated as a sphere with a radius of 20cm and is filled with helium

Calculate the minimum pressure needed to support a load of 4,200 N in the retracted position with a cylinder bore of 15 cm and a 3 cm rod. Round your answer to the nearest tenth.

An electron is released from rest in a uniform electric field. The electron accelerates vertically upward, traveling 4.50 m in the first 3.00 us after it is released. (a) What are the magnitude and direction of the electric field? (b) Are we justified in ignoring the effects of gravity? Justify…

when two uv beams of wavelength lambda = 80nm &lambda= 100nm fall on lead surface they produce photo electron with max energies 11.390 ev & 7.154

Consider two solid spheres with uniform mass distribution each: a small one with a radius R1 and a large one with a radius of 2·R1. Initially the spheres are separated and rotate in the same direction about the same axis of rotation as shown below, the smaller sphere rotates with ω1 = 22.6…

A 0.55‑kg solid sphere starts to roll up a ramp with an initial CoM velocity of vi = 14.9 m/s and goes up until it stops completely, see the picture below. To what maximum height h will the sphere rise if it rolls without slipping and no energy is lost?

Three point charges are arranged on a line. Charge 93 = +5.00 nC and is at the origin. Charge q2=-3.00 nC and is at x = +4.00 cm. Charge 4, is at x= +2.00 cm. What is q (magnitude and sign) if the net force on 93 is zero?

A 0.55‑kg solid sphere starts to roll up a ramp with an initial CoM velocity of vi = 14.9 m/s and goes up until it stops completely, see the picture below. To what maximum height h will the sphere rise if it rolls without slipping and no energy is lost? What is the maximum height?

What I Have Learned Arrange the words in correct order and write the sentence on the blank provided in each item. These are the observations that led the Greeks to conclude that the Earth is sphere. 1. Earth the circular casts on the moon a shadow during a lunar eclipse. The earth casts a…

You're trying to cook, and Steve needs a distraction. There is an angled box next to the counter, it will act as a ramp. You put a round ball (i = (2/3)mr2) on the top of the ramp and release it. The ball, r=0.05 meters rolls down the ramp onto the floor. When it is at the bottom of the ramp it…

Calculate the pressure exerted on a box that weighs 27 N and has an area of 3 m^2.

Calculate the pressure exerted on a box that weighs 25 N and has an area of 5 m^2. Show your work.

Calculate the pressure exerted on a box that weighs 100 lbs with an area of 10in^2

A block of mass m is initially at rest at the top of an inclined plane which has a height of 7.07m and makes an angle of θ=19.3° with respect to the horizontal. After being released, it is observed to be traveling at v=0.99m/s a distance d after the end of the inclined plane, as shown. The…

please explain

Using Boyles law, calculate the final pressure when given an initial gauge pressure of 90 psi, a starting volume of 1440in ^3, and a final volume of 144in ^3

how to convert mmHg to Pa?

Given a cylinder with a 4 inch bore and a 1 inch diameter rod, calculate the annular area of the rod side

Two blocks (10 kg and 40 kg) are joined together by a rope as shown in the picture below. The blocks rest on a frictionless horizontal surface and are pulled by a force of 70 N which points to the right. a) Draw an accurate force diagram for each block. Indicate any forces that are equal…

Calculate the theoretical force output in the circuit if the system pressure is 3450kPa (500psi), the input force is 1748N (393lbs), and there are 3 cylinders, all with a 2.54cm bore × 1.59cm rod (1 inch bore × 0.625 in rod)

Find the magnitude of the force needed to accelerate a 158-g mass with a = -0.248 m/s2 i + 0.247 m/s2 j.

1. Write vector ? in component form. Include units and answer in two significant figures 2, Write the resultant vector ? = ? + ? + ? in component form, with units, to two significant figures 3. Find the magnitude of ? to two significant figures, and give its angle of inclination to the…

Calculate the theoretical force of extension for a cylinder with a 5 inch bore and a pressure of 1800psi.

how to solve it?

please answer

A car traveling at 35.0 mph increases speed to 65.0 mph in a time of 7.75 sec. Which of the following is (are) true?

A ball is thrown with an initial velocity of 30.0 m/s at an angle of +60.0º. Determine the horizontal displacement 1.69 sec after it is thrown. a) +50.7 m b) +14.0 m c) +64.7 m d) +25.4 m e) +43.9 m f) -36.7 m g) +36.7 m h) +39.3 m

From the velocity versus time graph, determine the total displacement of the object during the first 40 sec of its motion. a) -175 m b) -62.5 m c) -25 m d) 0 m e) 113 m f) 288 m g) 600 m

For the given velocity versus time graph, determine the average acceleration from 5 to 35 sec, and the instantaneous acceleration at 25 sec. a) aavg = +0.67 m/s2, aat 25 = +1.00 m/s2 b) aavg = +0.67 m/s2, aat 25 = 0 c) aavg = 0, aat 25 = 0 d) aavg = +0.29 m/s2, aat 25 = +1.00…

For the given position versus time graph, determine the average velocity from 2.0 to 5.0 sec, AND the instantaneous velocity at 5.0 sec. a) vavg = +0.50 m/s, vat 5 = +2.7 m/s; b) vavg = +0.22 m/s, vat 5 = -2.7 m/s; c) vavg = +0.17 m/s, vat 5 = +2.7 m/s; d) vavg = +0.17 m/s, vat 5 =…

A student designs a marble roller coaster . The 17.3 g marble starts from the rest at point A, which is at a height of 2.83 m , travels on the tracks on point C, where it is travelling at 0.20 m/s. Assume the track is frictionless from the point A to B but experiences a force of friction 15 N…

An object in a horizontal surface was moved by applying a constant force (in Newtons), F =8i ̂+5j ̂. If the object was displaced 9 m to the right, determine a. The work done by the applied force on the object. b. The angle at which the force is applied.

A M = 24.0 kg block is connected to an empty m = 2.00 kg bucket by a cord running over a frictionless pulley as shown in the figure. The coefficient of static friction between the table and the block is 0.44 and the coefficient of kinetic friction between the table and the block is 0.33. Sand…

how to solve it?

Two blocks, m1=10.5 kg, m2=6.5 kg are arranged on an inclined plane (θ = 30◦) as shown above. Assume the masses are attached with a wire of negligible mass. Assume the pulley’s mass is negligible. The plane has a coefficient of kinetic friction, μk=0.20. Assume the blocks start from rest and…

Calculate the theoretical force of extension for a cylinder with a 3 cm bore and a pressure of 440 kPa.

An object in a horizontal surface was moved by applying a constant force (in Newtons), F =8i ̂+5j ̂. If the object was displaced 9 m to the right, determine The work done by the applied force on the object. The angle at which the force is applied.

Calculate the minimum pressure needed to support a load of 4,200 N in the retracted position with a cylinder bore of 15 cm and a 3 cm rod. Round your answer to the nearest tenth.

Calculate the pressure exerted on a box that weighs 27 N and has an area of 3 m^2.

Calculate the pressure exerted on a box that weighs 25 N and has an area of 5 m^2. Show your work.

Calculate the pressure exerted on a box that weighs 100 lbs with an area of 10in^2