A rubber ball and a lump of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall
Which objects experiences the greater momentum change? A) the ball
B) the putty
C) Both experience the same non-zero momentum change.
D) Both experience zero momentum change.
E) Cannot be determined from the information given.
A
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When a light wave enters into a medium of different optical density
A) its speed and frequency change. B) its speed and wavelength change. C) its frequency and wavelength change. D) its speed, frequency, and wavelength change.
Consider two planets in space that gravitationally attract each other. If the mass of one planet is doubled, and the distance between them doesn't change, then the force between them is
A) one-quarter. B) half as much. C) twice as much. D) four times as much. E) none of the above
If the answer to your calculation has units of kg ? m2/s, what type of quantity could it be? (There could be more than one correct choice)
A) angular momentum B) power C) work D) force E) linear momentum F) torque G) rotational kinetic energy H) moment of inertia
A certain disk can store 600 megabytes of information. If an average word requires 9.0 bytes of storage, how many words can be stored on one disk?
A) 6.7 × 107 words B) 5.4 × 109 words C) 2.1 × 107 words D) 2.0 × 109 words