A horizontal spring attached to a wall has a force constant of k = 850 N/m. A block of mass m = 1.00 kg is attached to the spring and rests on a frictionless, horizontal sur- face as in Figure P8.35. (a) The block is pulled to a posi- 6.00 cm fromn equilibrium and released. Find the clastic potential energy stored in the spring when the block is 6.00 cm from equilibrium and when the block passes through cquilibrium. (b) Find the speed of the block as it passes through the equilibrium point. (c) What is the speed of the block when it is at a position x/2= 3.00 cm? (d) Why isn't the answer to part (c) half the answer to part (b)? tion

A horizontal spring attached to a wall has a force constant of k = 850 N/m. A block of mass m = 1.00 kg is attached to the spring and rests on a frictionless, horizontal sur- face as in Figure P8.35. (a) The block is pulled to a posi- 6.00 cm fromn equilibrium and released. Find the clastic potential energy stored in the spring when the block is 6.00 cm from equilibrium and when the block passes through cquilibrium. (b) Find the speed of the block as it passes through the equilibrium point. (c) What is the speed of the block when it is at a position x/2= 3.00 cm? (d) Why isn't the answer to part (c) half the answer to part (b)? tion

Name: during its burn.(a) She moves, just like the archer in Example 9.1.(b
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: during its burn.(a) She moves, just like the archer in Example 9.1.(b) -(w v(c) As she throws the gloves andexerts a force on them, the gloves exert an equal andglovesopposite force on her that causes her to accelerate fromrest to reach the velocity

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

A 69.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s. The goal of this problem is to find the maximum height she attains and her speed at half maximum height. Write the general equation for energy conservation and solve for the velocity at half the maximum height. Substitute and obtain a numerical answer.
In the figure, a block of mass m = 1.30 kg slides head on into a spring of spring constant k = 390 N/m. When the block stops, it has compressed the spring by 6.60 cm. The coefficient of kinetic friction between block and floor is 0.330. While the block is in contact with the spring and being brought to rest, what are (a) the work done by the spring force and (b) the increase in thermal energy of the block-floor system? (c) What is the block's speed just as the block reaches the spring?
At location A, a 48.0-kg sledder has a height of 36.0 m above the bottom of the hill and possesses 480 J of kinetic energy. While coasting to location B at a height of 12.0 m, 1160 J of mechanical energy are dissipated. Determine the missing potential energy (PE) and kinetic energy (KE) values for locations A and B. Use g m 10.0 N/kg. Tap on an energy box to enter or edit its value. PEA = KEA = PEB = KEB = B For best results, avoid early rounding. Enter answers to at least 3 significant digits. Color-Coding Key: Not checked Correct Incorrect Entering answer Check Answers Send a chat
Two 37.0-lbm twins are playing in their backyard. One toddler is running full speed at 5.5 mph and his path will take him directly into a brick wall. His sister has climbed a 3.5-ft ladder and is perched precariously atop it. Calculate the kinetic and potential energies of the two twins with respect to their stationary destinations (the wall and the ground). Boy Girl i KE (lbf.ft) PE (lbf.ft) If potential energy is completely converted to kinetic energy during the girl's fall, how fast will she be travelling upon impact? mph
2 h 16 min zFVLOdcF A ball is thrown into the air with 100 J of kinetic energy, which is transformed to gravitational potential energy at the top of its trajectory. When it returns to its original level after encountering air resistance, its kinetic energy is 100 J. O more than 100 J. less than 100 J. Onot enough information given. The boom in the figure is 2m long and weighs 100 N. If the 800 load is ately
A 7.80 g bullet is moving at 460 m/s just before it penetrates a tree trunk to a depth of 4.9 cm (ay What the magnitude of the average frletional force (In N) that is exerted on the bullet whille moving the tree trunk? Uso work considerations to o your answer. (b) Asturing the frictional force is constant, how much time elapses between the moment the bullet enters the tree trunk and the moment it moving?
A 200-N child is in a swing that is attached to ropes 2.00 m long. Find the gravitational potential energy associated with the child relative to her lowest position at the following times. (a) when the ropes are horizontal (b) when the ropes make a 35.0° angle with the vertical (c) when the child is at the bottom of the circular arc Nood Heln?
Samantha pushes a 113 kgkg crate on a ramp that makes 8.59 degreesdegrees with the horizontal. What is the change in potential energy of this crate after Samantha pushes it for 10.0 mm along the ramp? (The answer choices have 3 significant figures.)
A tree trunk can be penetrated to a depth of 5.30 cm by a 7.80-g bullet traveling at 520 m/s. (a) Calculate the average frictional force required to stop the bullet using work and energy considerations. (a) Assuming the frictional force is constant, calculate the time it takes for the bullet to stop moving after entering the tree.
. A pogo stick has a spring with a spring constant of 2.5×104N/m,, which can be compressed 12.0 cm. To what maximum height from the uncompressed spring can a child jump on the stick using only the energy in the spring, if the child and stick have a total mass of 40 kg?
In the figure, a block of mass m = 1.40 kg slides head on into a spring of spring constant k = 220 N/m. When the block stops, it has compressed the spring by 14.0 cm. The coefficient of kinetic friction between block and floor is 0.280. While the block is in contact with the spring and being brought to rest, what are (a) the work done by the spring force and (b) the increase in thermal energy of the block-floor system? (c) What is the block's speed just as the block reaches the spring? (a) Number (b) Number i i (c) Number i Units Units Units 4 ←
A 7.80-g bullet moving at 590 m/s penetrates a tree trunk to a depth of 5.60 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. N=(b) Assuming the frictional force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving. s=