While a rock thrown upward at 50 degrees to the horizontal rises, neglecting air drag, its horizontal component of velocity
A) increases.
B) remains unchanged.
C) decreases.
Answer: B
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A 0.5 kg fish, hooked as shown below, starts to swim away at a speed of 3 m/s. The angular momentum of the fish relative to the hand holding the fishing rod is about
A.
B.
C.
D.
E.
This diagram represents a star with an orbiting planet that, as seen from Earth, periodically transits across the face of the star and disappears behind the star. If you measure the brightness of this system, at which point would it be brightest?
A) Point 1 B) Point 2 C) Point 3 D) Point 4
The overall composition of Titan's atmosphere is most similar to the atmosphere of which terrestrial planet?
A) Venus B) Earth C) Mars D) Mercury
The relationship between organelles and their host cells can best be described as
A) viral B) sexual C) symbiotic D) parasitic