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Physics 101 Mechanics Q&A Archive of May 8, 2023

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May 8 of 2023

What is the temperature of oC at absolute zero?
What is density? How might we calculate it? How is this different from weight density?
DE QUESTIONS Identify what features of a capacitor can be maximized or minimized to make a capacitor with greatest capacitance. - What features of the simulation did you use to help you?
popular scene in recent action films shows a character in free-fall speed up to catch a freely falling parachute. Suppose a packed parachute is dropped from rest from an airplane and that a daredevil is launched straight down from the plane 3.00 s later. Neglecting air resistance, the daredevilā€¦
What is weight and how is it measured? What is meant by ā€œnormalā€ weight? When might an object weight more or less than its normal weight? When is it weightless?
How does the force of gravity acting on an object depend on the mass of the object? The mass of the planet? The distance between the object and planet? The shape of the object?
What is impulse? How is it related to force?
What is the difference between a source of energy and a type of energy? Give some examples.
A rectangular gate having a width of 5 ft is located in the sloping side of a tank as shown in Figure. The gate is hinged along its top edge and is held in position by the force P. Friction at the hinge and the weight of the fate can be neglected. Determine the required
a. The mercury manometer of the figure below indicates a differential reading of 0.30 m when the pressure mm Hg vacuum. Determine the pressure in pipe B. Take the specific weight of mercury as 132.9 kN/mĀ³ of Oil as 8.95 kN/mĀ³ and specific weight of water as 9.81 kN/mĀ³
Rate of flow energy equation
A solid disk begins at rest and rolls down a30 degree inclined plane. What is the speed of the disk after it has rolled 1.99 meters along the plane? Express your answer in m/s.
A tire rotates through an angle of 27 radians as it slows from a rotational speed of 37.5 rad/s to 13.5 rad/s. What is the magnitude of the rotational acceleration? Answer in positive rad/s2 .
As can be seen in Figure Ql, there is a rigid arm GAB with two sections OA: L1 = 0.3 m and AB: L2 = 0.4 m, which is connected at an angle of f3 = 45Ā°. The arm rotates about the Y axis through the collar 0 at the angular speed of w1 = 10 rad/ s at the instant, while being accelerated constantlyā€¦
A uniform 25 N beam 6 m long is carried by two men A and B, one at each end of the beam. a) If A exerts a force of 20 N, where must a load of 45 N be placed on the beam? b) What force does B exert?
statics lesson.
Search textbooks and questions Textbooks Notes \& Exams NEW Ask our Educators Study Tools For Educator Question 4 The Taco Inc.Model 4013 centrifugal pump has an impeller of diameter \( D=12.95 \) in When pumping 20 Cwater at \( 2=1160 \) \( \mathrm{rev} / \mathrm{min} \).the measured flow rateā€¦
Use dimensional analysis to see which of the following expressions is/are NOT allowed if \( p \) is a pressure, \( t \) is a time, \( m \) is a mass, \( r \) is a distance, \( v \) is a velocity and \( T \) is a temperature? (1) \( \log \left(\frac{p t}{m r}\right) \) (2) \( \log \left(\frac{pā€¦
Calculate the inclination of w of the rod to the horizontal from the information in the attached image
Calculate ||F|| from the given information in the attached image
solve it in details please
The diagram given below shows two masses: m_A=1,39kg and m_B=2,21kg that are attached by means of light strings to the endpoints A and B of a uniform rigid rod AB. If the rod has mass 3,6kg and length 3,6m and is resting horizontally in equilibrium on a smooth support at point C, then |AC|ā€¦
an object is at point p , which is found at (7,0) in polar coordinates . the object then moves around one-eighth of the circle and comes to a stop at point Q . what are the polar coordinates of Q if theta is measured in degrees
1- Suppose we have a 15- \( \mu \mathrm{F} \) capacitor that is charged to \( 500 \mathrm{~V} \). Determine the initial stored charge and energy. If this capacitor is dis-charged to OV in a time interval of \( 4 \mu \) s, find the average power delivered by the capacitor during the dischargeā€¦
1-12 A point moves in a circle at a constant speed of \( 50 \mathrm{~cm} / \mathrm{sec} \). The period of one complete journey around the circle is \( 6 \mathrm{sec} \). At \( t=0 \) the line to the point from the center of the circle makes an angle of \( 30^{\circ} \) with the \( x \)ā€¦
You are at a concert on a summer day (T=25o C). Your seat is 7.00 m away from the speaker on the left side of the stage, and 9.10 m away from the right speaker. During warm-up, a roadie plays a single note (f=494 Hz) to tune an instrument. What will you hear?
1-11 A mass on the end of a spring oscillates with an amplitude of \( 5 \mathrm{~cm} \) at a frequency of \( 1 \mathrm{~Hz} \) (cycles per second). At \( t=0 \) the mass is at its equilibrium position \( (x=0) \). (a) Find the possible equations describing the position of the mass as a functionā€¦
Solve the Problem: 1. A ball is thrown with an initial velocity of \( 30.0 \mathrm{~m} / \mathrm{s} \) and makes an angle of \( 30.0^{\circ} \) with the ground. Find: a. Horizontal distance b. Maximum height c. Total time the ball is traveling
solve in details
What is this answer?
As shown in Figure Q2, a circular disk is spinning at angular velocity wd = 5 rad/s, and also being angularly accelerated at ad = lrad/s2 relative to the horizontal bar with length of b = 0.5 m. Meanwhile, the vertical shaft also rotates at angular velocity w0 = 2 rad/s with respect toā€¦
tquibrium 4.3 A SON box is slid straight across the floor at consto Fore of 25N, as depicted in Fig 4.3. (a) How large a \( F \) motion of the boxe? (b) How large is the nommal the box and the Floor.
Two identical railroad cars sit on a horizontal track, with a distance D between their centers. By means of a cable between them, a winch on one is used to pull the two together. (a) Describe their relative motion. (b) Repeat if the mass of one car is three times that of the other.
Example 33. A stream of electrons moving with a velocity of \( 3 \times 10^{7} \mathrm{~ms}^{-1} \) is deflected by \( 2 \mathrm{~mm} \) in traversing a distance of \( 0.1 \mathrm{~m} \) in a uniform electric field of strength \( 18 \mathrm{~V} \mathrm{~cm}^{-1} \). Determine e/m of electrons.
Calculate the volume of the block in m3, find the relative error in the volume as a percentage, and determine the absolute error in the volume in m 3 and mm3.
A rope is tightly wound along the equator of a large sphere of radius R. The length of the rope is increased by a small amount ī¬ (<< R) and it is pulled away from the surface at a point to make it taut. To what height (h) from the surface will the point rise ? If the radius of the earthā€¦
In making the part shown below using the SLA additive manufacturing process, discuss in detail how the major issues (Computation-related; Process-related; Material-related) affect part accuracy. Use a sample graphical description for each issue and identify the preferred build orientation (Xā€¦
Use the simple product design of a fingernail clipper as an example to illustrate the potential failure modes and their effects with respect to safety, customer satisfaction, performance, reliability, and environmental concerns. Document your analysis with at least one function and its twoā€¦
Activity \# 3: What is the value of the unknown \( R \) if the voltage across the \( 500 \Omega \) resistances is \( 4 \mathrm{~V} \) ? (Ans. 756.25 \( \Omega \) )
(a) What is the average velocity of the car during this \( 80 \mathrm{~km} \) trip. (b) What is the average speed? 2. A truck on a straight road starts from rest and accelerate at \( 2.0 \mathrm{~m} / \mathrm{s}^{2} \) until it reaches a speed of \( 20 \mathrm{~m} / \mathrm{s} \). Then theā€¦
explain the picture
I am required to modify my attached diagram to incorporate an emergency stop that parks both cylinders A & B in the extended position. As already shown by A.
Use a simple parametric model of your own choice to show its "explicit parameters", "inexplicit parameters"and "constraints". Explain how your parametric model could be evaluated based on the parameters and constraints.(10 marks)
please answer
Hi, my question is, if we double the mass in this situation, does it affect the block's displacement down the ramp? thank you in advance
Describe the working principles of Selective Laser Sintering (SLS) and Digital Light Processing (DIP) based additive manufacturing processes. Use a graphic diagram to help your description of each principle. Compare the major advantages and disadvantages of the two processes.
III. Since the rubber bĆ¼llet bounces off, it has little effect. 67. CE A juggler performs a series of tricks with three bowling balls while standing on a bathroom scale. Is the average reading of the scale greater than, less than, or equal to the weight of the: juggler plus the weight of theā€¦
Describe the working principles of Fused Deposition Modeling (FDM) and StereoLithography Apparatus (SLA) based additive manufacturing processes. Use a graphical diagram to help your description of each principle. Compare the major advantages and disadvantages of the two processes.(5 marks)
please answer.
Use graphical illustration to show both a valid and an invalid sweep operation based on the curve provided below.(5 marks)
Suppose you have a simple model(with uniform thickness) as shown in the figure, do the following question: Suppose the part is to be built by the SLA additive manufacturing process in eitherx or y direction. Which build direction(x or y) will you recommend, why?(5 marks)
1.7 Paint is sold in different sizes as shown below. 2 litre tin@R189 5 litre tin @439.99 1 litre tin@R100 Prices excludes VAT of \( 15 \% \) 1.7.1 Convert the capacity of a 5 -litre tin to its volume in \( \mathrm{cm}^{3} \) NOTE: 1 litre \( =1000 \mathrm{~cm}^{3} \) (2) 1.7.2 According to aā€¦
ffs
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 3.20 cm, and the frequency is 1.90 Hz. (f) Determine the total distance traveled between t = 0 and t = 0.79 s.
The free-fall acceleration on the surface of Uranus is about equal to that on the surface of the Earth. The radius of Uranus is about 3.50 RE (RE = Earth's radius = 6.4 x 10^6 m). Find the ratio of their average densities, ĻUranus/ĻEarth.
please answer
A 120-kg object and a 420-kg object are separated by 4.30 m. (a) Find the magnitude of the net gravitational force exerted by these objects on a 32.0-kg object placed midway between them. (b) At what position (other than an infinitely remote one) can the 32.0-kg object be placed so as toā€¦
A 200 g load attached to a horizontal spring moves in simple harmonic motion with a period of 0.260 s. The total mechanical energy of the springā€“load system is 2.00 J. What If? What is the percentage change in amplitude of motion if the total energy of the system is increased to 5.00 J?
A plastic ball attached to a spring moves in simple harmonic motion. The amplitude of the ball's motion is 13.0 cm, and the spring constant is 5.00 N/m. When the ball is halfway between its equilibrium position and its maximum displacement from equilibrium, its speed is 25.6 cm/s. (a) What isā€¦
units for two dimensional motion
KEY CONCEPTS: Sea Breere - The land heats up faster than water. - The land cools off faster than water. - As the warm air rises, the surrounding air moves in to replace the rising warm air. Land Breere - At daytime, the air moves from the sea to the land. - At nighttime, the air moves from theā€¦
What is the temperature of oC at absolute zero?
What is density? How might we calculate it? How is this different from weight density?
What is weight and how is it measured? What is meant by ā€œnormalā€ weight? When might an object weight more or less than its normal weight? When is it weightless?
How does the force of gravity acting on an object depend on the mass of the object? The mass of the planet? The distance between the object and planet? The shape of the object?
What is impulse? How is it related to force?
What is the difference between a source of energy and a type of energy? Give some examples.
a. The mercury manometer of the figure below indicates a differential reading of 0.30 m when the pressure mm Hg vacuum. Determine the pressure in pipe B. Take the specific weight of mercury as 132.9 kN/mĀ³ of Oil as 8.95 kN/mĀ³ and specific weight of water as 9.81 kN/mĀ³
A solid disk begins at rest and rolls down a30 degree inclined plane. What is the speed of the disk after it has rolled 1.99 meters along the plane? Express your answer in m/s.
A tire rotates through an angle of 27 radians as it slows from a rotational speed of 37.5 rad/s to 13.5 rad/s. What is the magnitude of the rotational acceleration? Answer in positive rad/s2 .
A uniform 25 N beam 6 m long is carried by two men A and B, one at each end of the beam. a) If A exerts a force of 20 N, where must a load of 45 N be placed on the beam? b) What force does B exert?
solve it in details please
The diagram given below shows two masses: m_A=1,39kg and m_B=2,21kg that are attached by means of light strings to the endpoints A and B of a uniform rigid rod AB. If the rod has mass 3,6kg and length 3,6m and is resting horizontally in equilibrium on a smooth support at point C, then |AC|ā€¦
an object is at point p , which is found at (7,0) in polar coordinates . the object then moves around one-eighth of the circle and comes to a stop at point Q . what are the polar coordinates of Q if theta is measured in degrees
You are at a concert on a summer day (T=25o C). Your seat is 7.00 m away from the speaker on the left side of the stage, and 9.10 m away from the right speaker. During warm-up, a roadie plays a single note (f=494 Hz) to tune an instrument. What will you hear?
solve in details
please answer
please answer.
ffs
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 3.20 cm, and the frequency is 1.90 Hz. (f) Determine the total distance traveled between t = 0 and t = 0.79 s.
The free-fall acceleration on the surface of Uranus is about equal to that on the surface of the Earth. The radius of Uranus is about 3.50 RE (RE = Earth's radius = 6.4 x 10^6 m). Find the ratio of their average densities, ĻUranus/ĻEarth.
please answer
A 120-kg object and a 420-kg object are separated by 4.30 m. (a) Find the magnitude of the net gravitational force exerted by these objects on a 32.0-kg object placed midway between them. (b) At what position (other than an infinitely remote one) can the 32.0-kg object be placed so as toā€¦
A 200 g load attached to a horizontal spring moves in simple harmonic motion with a period of 0.260 s. The total mechanical energy of the springā€“load system is 2.00 J. What If? What is the percentage change in amplitude of motion if the total energy of the system is increased to 5.00 J?
A plastic ball attached to a spring moves in simple harmonic motion. The amplitude of the ball's motion is 13.0 cm, and the spring constant is 5.00 N/m. When the ball is halfway between its equilibrium position and its maximum displacement from equilibrium, its speed is 25.6 cm/s. (a) What isā€¦