Universe
Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 26, Problem 6CC
To determine

Whether the pair of virtual proton and antiproton exists for a longer time or shorter time as compared to the pair of electron and antielectron before annihilating, if protons are about 2000 times heavier than electrons.

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Calculate the value of the force F at which the 20 kg uniformly dense cabinet will start to tip. Calculate the acceleration of the cabinet at this force F. Must include the FBD and KD of the system. Ignore friction.
1) A 2.0 kg toy car travelling along a smooth horizontal surface experiences a horizontal force Fas shown in the picture to the left. Assuming the rightward direction to be positive and if the car has an initial velocity of 60.0m/s to the right, calculate the velocity of the car after the first 10.0s of motion. (Force is in Newtons and time in seconds). (Hint: Use impulse-momentum theorem) F 5.0 10 0 -10
3) Two bumper cars of masses 600 kg and 900 kg travelling (on a smooth surface) with velocities 8m/s and 4 m/s respectively, have a head on collision. If the coefficient of restitution is 0.5. a) What sort of collision is this? b) Calculate their velocities immediately after collision. c) If the coefficient of restitution was 1 instead of 0.5, what is the amount of energy lost during collision?
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