Uniform Circular Motion: When an object moves in uniform circular motion, the direction of its acceleration is
A. in the same direction as its velocity vector.
B. in the opposite direction of its velocity vector.
C. is directed toward the center of its circular path.
D. is directed away from the center of its circular path.
E. depends on the speed of the object.
Answer: C
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Reflected light from the Moon in a lake often appears as a vertical column when the water is
A) perfectly still. B) slightly rough. C) very rough as with churning waves.
A neutral atom has an electron configuration of 1s22s22p6. If a neutral atom holds one additional electron, what is the ground state configuration?
A) 1s22s22p63s1 B) 1s22s22p7 C) 1s22s32p6 D) 1s32s32p6 E) none of the given answers
The change in entropy when 1 kg of ice melts at 0°C is (in J/K). (Lice = 333 J/g.)
a. 335. b. 603. c. 1 220. d. 1 310. e. 2 160.
Specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C The 1 kg block of ice melts into water. The amount of heat absorbed by the ice as it melts is 334,000 J
Indicate whether the statement is true or false