In the Miller-Urey experiment, the electric discharge was meant to simulate
A) meteorite impacts.
B) radiation.
C) volcanic heating.
D) lightning.
E) ultraviolet light.
D
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In a swell, wavelength is constant. As a swell touches bottom, the wavelength
A) increases and velocity decreases. B) shortens and velocity decreases. C) shortens and velocity increases. D) and velocity increase.
Which planet may have helium rain in its interior, and what does this rain do?
A) Saturn, where it generates heat as it falls downward B) Uranus, where it makes the ground wet C) Neptune, where it is restructuring the planet's interior D) Jupiter, where it may be an energy source for the Great Red Spot
A ball falls to the ground from height h and bounces to height h'. Momentum is conserved in the ball-earth system
a. no matter what height h' it reaches. b. only if h' < h. c. only if h' = h. d. only if h' > h. e. only if h' ? h.
Astronomers can determine the mass of the Sun by applying Newton's modification of Kepler's Third law.
Answer the following statement true (T) or false (F)