General Questions: A box is placed on a table which rests on the floor. The box pushes on the table; the reaction force to the box's push on the table is the table's push on the floor.
A. True
B. False
Answer: B
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Suppose that a source of sound is emitting waves uniformly in all directions. If you move to a point twice as far away from the source, the frequency of the sound will be
A) unchanged. B) half as great. C) as great. D) twice as great. E) one-fourth as great.
The index of refraction for red light in water is 1.331 and for blue light is 1.340 . If a ray of white light enters the water at an angle of incidence of 83.00°, what are the underwater angles of refraction for the blue and red components of the light?
The study of planet Earth is known as
a. mineralogy. b. petrology. c. geology. d. paleontology.
Mercury's most unusual orbital feature, as compared to the other planets, is:
A) the size of its orbit. B) the shape of its orbit. C) its orbital period. D) the size of the planet. E) that it has no moons.