The 75°W longitude meridian is the center of the ______________ Standard Time zone in the United States
a. Pacific
b. Mountain
c. Eastern
d. Central
c
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A 0.140-kg baseball is dropped from rest from a height of 2.2 m above the ground. It rebounds to a height of 1.6 m. What change in the ball's momentum occurs when the ball hits the ground?
A) 0.117 kg?m/s upwards B) 0.117 kg?m/s downwards C) 1.70 kg?m/s upwards D) 0.350 kg?m/s upwards E) 0.350 kg?m/s downwards
When a capacitor has a charge of magnitude 80 ?C on each plate the potential difference across the plates is 16 V. How much energy is stored in this capacitor when the potential difference across its plates is 42 V?
A. 1.0 mJ B. 4.4 mJ C. 3.2 mJ D. 1.4 mJ E. 1.7 mJ
When visible light is incident upon transparent glass, most atoms in the glass
A) are forced into vibration. B) resonate. C) convert the light energy into thermal energy.
If you stand closer to a concave mirror than a distance of one focal length, the image you see is
a. real and inverted. b. real and upright. c. virtual and inverted. d. virtual and upright. e. none of the above because you do not get an image.