Show-work problem: A 2.5-kg block is held at rest against a spring (k = 1200 N/m), compressing it d = 5.0 cm from its equilibrium position, then released. There is no friction 1. A в except where indicated otherwise. a. How much potential energy is stored in the spring just before the block is released?

Show-work problem: A 2.5-kg block is held at rest against a spring (k = 1200 N/m), compressing it d = 5.0 cm from its equilibrium position, then released. There is no friction 1. A в except where indicated otherwise. a. How much potential energy is stored in the spring just before the block is released?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

i just need help with C and D A big ship with a mass of 5.95 x 10 7 kg has a speed of 11.0 m/s at some instant. A. What is the ship’s kinetic energy? B. How much work is required to stop it? C. How is work related to the mechanical energy? D. What is the magnitude of the constant force required to stop it as it undergoes a displacement of 2.75 km?
A. A student whose mass is 51 kg climbed the stairs from the first floor to the third floor, 15 meters above, in 20 seconds. a. Calculate the work done in J. b. Calculate the power expended in W.
2. An object has 560 J of potential energy and 890 J of mechanical energy. How much kinetic energy does the object have?. ME = REHPE 560 560 330J= PE olog ertev 3. A slingshot rubber band with a spring constant of 850 N/m was stretched 0.33 m. A 0.4 kg rock was fired from the slingshot after it was released. a. Find the spring potential energy. PE =)2 kx? Z(850X.33) b. What is the kinetic energy of the stone once it was released? PEERE c. What is the velocity of the stone as soon as the slingshot was released?
2. A spring that has spring constant k = 360 N/m is compressed by x = 9 cm. When the spring is released, all its energy is transferred to a 22 g marble ball.
b
A moving object is subject to conservative forces only. When its kinetic energy dereases by 10 J, what happens to its potential energy? A. It increases but not necessarily equal to 10 J. B. It increases by 10 J C. It decreases by 10 J D. It remains the same.
If you drop a 13.Okg ball from a height of 30m (neglect friction). How many Joules of Potential Energy does it have at the moment before dropping it? 3. a. b. How many Joules.of Kinetic Energy will it have when it is halfway through its fall? c. How fast is it going as it impacts the ground?
1. Power is how strong someone or something is. C. how mưch work is being done, how much force is being used. A. В. D. how fast work is being done. 2. In which situation is a person doing work on an object? . A. A school crossing guard raises a stop sign that weighs 10 N. A student walks 1 m/s while wearing a backpack that weighs 15 N. A man exerts a 350 N force on a rope attached to a house. A worker holds a box 1 m off the floor. В. С. D. - 3. Juan and Anita each lift an identical stack of books the same distance onto a table, but Anita does the job twice as fast. Therefore, her actions involve twice as much A. work input. work output. C. power. D. efficiency. В. 4. Which of the following is NOT an example of work according to the scientific definition of work? A. playing baseball B. reading a chapter for homework C. pushing a wheelbarrow D. bowling 5. A man applies a force of 500 N to push a truck 100 m down the street. How much work has been done? A. 500,000 J В. 5,000 J C. 510 J…
The potential energy of an interaction is given by U(x)=ax², where a = +6.4 J/m². Initial speed of a 0.79-kg object in this system is 2.63 m/s at x = 0. A. How far does the object travel before it reaches a speed of v = 0? Express your answer with the appropriate units. B. Does your answer in the previous part depend on whether the object is traveling in the positive or negative direction? Yes, the answer in the previous part is for the object traveling in the negative x� direction, the distance for the object traveling in the positive x� direction is greater than the obtained result. Yes, the answer in the previous part is for the object traveling in the positive x� direction, the distance for the object traveling in the negative x� direction is greater than the obtained result. No, it does not depend on whether the object is traveling in the positive or negative x� direction.
5. A 0.085kg toy popper, the plastic kind made from a spring and a suction cup, is compressed 0.03m towards the tabletop. It releases and "pops" up to a maximum height of 0.35m above the tabletop. a. What is the potential energy at its highest point? b. What was the kinetic energy when it left the tabletop? c. How fast was it moving when it left the tabletop? d. How much elastic potential energy was in the popper spring when it was compressed? e. What is the spring constant of the spring in the popper?
Suppose an elephant has a mad of 3150 kg. a. How fast, in meters per second, does the elephant need to move to have the same kinetic energy as a 65 kg sprinter running at 10.5 m/s ?
A particle of mass m moves along the x-axis. Its potential energy at any point x is -x2 V(x) = V, x*e* V,= constant a. Find the force on the particle. b. Find all the points on the x- axis where the particle can be in equilibrium and determine whether each equilibrium point is stable or unstable. Sketch the potential energy and label the equilibrium points.