Chapter 11: Q. 1 (page 286)
Rank in order, from largest to smallest, the momenta to of the objects in FIGURE .
Short Answer
Rank in order, from largest to smallest is.
Chapter 11: Q. 1 (page 286)
Rank in order, from largest to smallest, the momenta to of the objects in FIGURE .
Rank in order, from largest to smallest is.
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Get started for freeA package of mass m is released from rest at a warehouse loading dock and slides down the -high, frictionless chute of FIGURE EX11.25 to a waiting truck. Unfortunately, the truck driver went on a break without having removed the previous package, of mass , from the bottom of the chute.
a. Suppose the packages stick together. What is their common speed after the collision?
b. Suppose the collision between the packages is perfectly elastic. To what height does the package of mass m rebound?
A neutron is an electrically neutral subatomic particle with a mass just slightly greater than that of a proton. A free neutron is radioactive and decays after a few minutes into other subatomic particles. In one experiment, a neutron at rest was observed to decay into a proton and an electron . The proton and electron were shot out back-to-back. The proton speed was measured to be and the electron speed was . No other decay products were detected.
a. Did momentum seem to be conserved in the decay of this neutron?
b. If a neutrino was emitted in the above neutron decay, in which direction did it travel? Explain your reasoning.
c. How much momentum did this neutrino “carry away” with it?
Two blocks of wood are apart on a frictionless table. A bullet is fired at toward the blocks. It passes all the way through the first block, then embeds itself in the second block. The speed of the first block immediately afterward is . What is the speed of the second block after the bullet stops in it?
A object is moving to the right with a speed of when it experiences the force shown in FIGURE EX11.8. What are the object’s speed and direction after the force ends?
A plastic cart and a lead cart can both roll without friction on a horizontal surface. Equal forces are used to push both carts forward for a time of , starting from rest. After the force is removed at , is the momentum of the plastic cart greater than, less than, or equal to the momentum of the lead cart? Explain.
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