An object with a rest mass of 0.456-kg is moving at 1.20 × 108 m/s. What is the magnitude of its momentum? (c = 3.00 × 108 m/s)
A) 5.57 × 107 kg ? m/s
B) 5.67 × 107 kg ? m/s
C) 5.97 × 107 kg ? m/s
D) 5.47 × 107 kg ? m/s
E) 5.87 × 107 kg ? m/s
C
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The area under the force-displacement curve represents:
a. area. b. work. c. force. d. coefficient of static friction.
An object with an initial velocity of 3.50 m/s moves east along a straight and level path. The object then undergoes a constant acceleration of 1.80 m/s2 east for a period of 5.00 s. How far does the object move while it is accelerating?
(F) 6.30 m (G) 17.5 m (H) 27.2 m (J) 40.0 m
An capacitor consists of two large parallel plates of area A separated by a very small distance d. This capacitor is connected to a battery and charged until its plates carry charges +Q and -Q, and then disconnected from the battery
If the separation between the plates is now doubled, the potential difference between the plates will A) double. B) quadruple. C) be cut in half. D) be cut in fourth. E) not change.
If the distance between a point mass and the pivot point is tripled, the rotational inertia of the object about that point is multiplied by
A. 9 B. 3 C. 1/3 D. 1/9