A skater is using very low-friction rollerblades. A friend throws a Frisbee at her, on the straight line along which she is coasting. Describe the following event as an elastic, an inelastic, or a perfectly inelastic collision between the skater and the Frisbee. She catches the Frisbee and holds it
1.elastic
2.inelastic
3.perfectly inelastic
3
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Image height divided by object height gives __________
Fill in the blank(s) with correct word
If a system undergoes a reversible process,
A) it must be possible to restore the system to its original state. B) it must be possible to restore the surroundings to their original state. C) it must be possible to restore both the system and the surroundings to their original states. D) it is impossible to restore either the the system or the surroundings to their original states. E) the system must not interact with its surroundings.
The temperature of a rigid cylinder, 15 cm tall and 15 cm in radius, which is filled with Xenon (a monatomic gas at standard temperature (0oC) and pressure (1 atm). The box is later raised to 25oC. What is the heat input required to perform this act?
A. 490 J B. 250 J C. 160 J D. 300 J E. 100 J F. 150 J
Two particles, X and Y, are 4 m apart. X has a charge of 2Q and Y has a charge of Q. The force of X on Y:
A) has twice the magnitude of the force of Y on X B) has half the magnitude of the force of Y on X C) has four times the magnitude of the force of Y on X D) has one-fourth the magnitude of the force of Y on X E) has the same magnitude as the force of Y on X