The Sahara in northern Africa is an example of a
A) rain shadow desert on the downslope of a large mountain range.
B) cold ocean current desert formed by local winds coming off cool ocean areas.
C) horse latitude desert formed by Earth's tradewinds.
D) subtropical desert formed when tropical areas are overwhelmed by sand.
Answer: C
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Triton's source of internal heat is mostly associated with
A) tidal heat associated with its elliptical orbit around Neptune B) tidal heat left over from it being captured into orbit around Neptune C) radioactive decay D) heat left over from its formation
Which of the following is an almost reversible process?
A. The explosion of hydrogen and oxygen to form water. B. Heat transfer through thick insulation. C. The adiabatic free expansion of a gas. D. A slow isothermal compression of a gas. E. A slow leakage of gas into an empty chamber through a small hole in a membrane.
A particle is being accelerated through space by a 10-N force. Suddenly the particle encounters a second force of 10 N in the opposite direction. The particle with both forces acting
A) is brought to a rapid halt. B) decelerates gradually to a halt. C) continues at the same speed it had before encountering the second force. D) theoretically tends to accelerate toward the speed of light. E) none of the above
On planet X, the absolute pressure at a depth of 2.00 m below the surface of a liquid nitrogen lake is 5.00 × 105 N/m2
At a depth 5.00 m below the surface, the absolute pressure is 8.00 × 105 N/m2. The density of liquid nitrogen is 808 kg/m3. (a) What is the atmospheric pressure on planet X? (b) What is the acceleration due to gravity on planet X?