Which is NOT a characteristic of an ideal gas?
a. Its properties and behavior are identical to those of air at atmospheric pressure.
b. Its particles have no internal structure.
c. Its particles are indestructible.
d. Its particles only interact with each other when they collide.
e. It consists of an enormous number of tiny particles separated by large distances.
a
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Consider a situation where two moving objects collide and rebound from each other.Linear momentum
a. is definitely conserved. b. is definitely not conserved. c. may or may not be conserved, depending on the nature of the collision. d. none of the above
Two blocks with masses 2.0 kg and 3.0 kg are placed on a horizontal frictionless surface. A light spring is placed in a horizontal position between the blocks. The blocks are pushed together, compressing the spring, and then released from rest. After contact with the spring ends, the 3.0-kg mass has a speed of 2.0 m/s. How much potential energy was stored in the spring when the blocks were
released? a. 15 J b. 3.0 J c. 6.0 J d. 12 J e. 9.0 J
The electric potential at a distance d from a point charge is V. At a distance d’, the potential is 2V. What is the ratio of electric field at d’ to that at d?
A. 4 B. more information is necessary C. 2 D. 1?2 E. 1?4
A 150-W light bulb is designed to operate at 110 V dc. How much current does it draw?
A) 15 A B) 1.4 A C) 0.73 A D) 2.0 A