Kinetic Energy: The special theory of relativity predicts that there is an upper limit to the speed of an object. It therefore follows that there is also an upper limit on which of the following properties of the object? (There could be more than one correct choice.)
A. The kinetic energy of the object.
B. The total energy of the object.
C. The linear momentum of the object.
D. None of these.
Answer: D
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Over 1 cycle of a cyclic process in which a system does net work on its environment:
A. the change in the pressure of the system cannot be zero B. the change in the volume of the system cannot be zero C. the change in the temperature of the system cannot be zero D. the change in the internal energy of the system cannot be zero E. none of the above
The coefficient of linear expansion of aluminum is 24.0 × 10-6 K-1 and the density of aluminum at 0°C is 2.70 × 103 kg/m3. What is the density of aluminum at 300°C?
A) 3.93 × 103 kg/m3 B) 2.73 × 103 kg/m3 C) 2.70 × 103 kg/m3 D) 2.67 × 103 kg/m3 E) 2.64 × 103 kg/m3
When a particle and antiparticle meet, they are said to annihilate each other. What does this mean?
a. They explode into tiny fragments. b. They are destroyed, and turned into an equivalent amount of energy. c. They merge and simply disappear. d. none of the above
When the Sun moves off the main sequence, it will next become a(n) ______________
Fill in the blank(s) with correct word