What is the mass of a ball moving at 3 m/s with a momentum of 48 kg?m/s?
A) 4 kg
B) 12 kg
C) 16 kg
D) 144 kg
E) none of these
Answer: C
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If M = 0.50 kg, L = 1.2 m, and the mass of each connecting rod shown is negligible, what is the rotational inertia about an axis perpendicular to the paper through the center of mass? Treat the mass as particles.
?
?
A. 3.7 kg?m2 B. 2.8 kg?m2 C. 3.2 kg?m2 D. 2.3 kg?m2 E. 3.9 kg?m2
The terrestrial planets in our solar system are ________
A) Pluto and Eris B) Mars, Jupiter, Saturn, Uranus, and Neptune C) Mercury, Venus, Earth, and Mars D) Jupiter, Saturn, Uranus, and Neptune
In twice the time, an object will attain a speed that is
A) four times as fast. B) 16 times as fast. C) 12 times as fast. D) twice as fast. E) eight times as fast.
If one could observe the individual atoms making up a piece of matter and note that during a process of change their motion somehow became more orderly, then one may assume which of the following in regard to the system?
a. increases in entropy b. decreases in entropy c. gains in thermal energy d. positive work done on