Relative to some reference frame in the universe, you may now be traveling at a speed
A) faster than the speed of light.
B) slower than the speed of light.
C) at the speed of light.
D) any of the above
Answer: B
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The tail of a comet is primarily caused by
A) radiation pressure. B) electromagnetic induction. C) Coulomb repulsion. D) eddy currents. E) nuclear magnetism.
A solar eclipse can only happen during a:
A) new moon. B) solstice. C) first quarter moon. D) full moon. E) perihelion passage of the Sun.
Clovis wants to lose weight. Clotilde tells him that he will be thin enough for her if he travels past her at 0.600c. If the distance she sees from the front of his stomach to his back is then 24.0 cm, what distance in cm does she see when he is standing still?
a. 15.4 b. 19.2 c. 24.0 d. 30.0 e. 37.5
Suppose that the gravitational force by Earth on the moon suddenly shut off. How would the moon then move?
A) It would go into a larger circular orbit. B) It would move straight ahead in a straight line, at constant speed. C) It would move directly outward, away from Earth. D) It would slow down and stop. E) It would move directly inward, toward Earth.