The moist greenhouse effect refers to
A) the warming process by which water vapor rises into the upper atmosphere above the ozone layer where it is then broken apart by ultraviolet radiation
B) the point at which water is evaporating from the surface at a faster rate than it is condensing
C) the natural greenhouse effect due to clouds of water vapor in the lower atmosphere
D) an enhanced greenhouse effect above tropical regions of the Earth's surface
Question 2A horizontal force of 5.0 N accelerates a 4.0 kg mass, from rest, at a rate of 0.50 m/s2 in the positive direction. What friction force acts on the mass?
A) +3.0 N
B) -3.0 N
C) +2.0 N
D) -2.0 N
E) -3.3 N
Question 3In 1994, fragments of the Comet Shoemaker-Levy 9 were observed to collide with the planet
A) Mars
B) Saturn
C) Jupiter
D) Venus
Question 4Simple pendulum A swings back and forth at twice the frequency of simple pendulum B. Which statement is correct?
A) Pendulum B is twice as long as A.
B) Pendulum B is twice as massive as A.
C) The length of B is times the length of A.
D) The mass of B is times the mass of A.
E) The length of A is times the length of B.
Question 5When a vapor condenses into a liquid, its temperature
A) insufficient information, cannot answer
B) rises.
C) stays the same.
D) falls.
Question 6If a spring-operated gun can shoot a pellet to a height of 100. m on Earth, how high could the pellet rise if fired on the moon?
A) 3600. m
B) 16.7 m
C) 600. m
D) 3.60 km
E) 100. m
Quick Reply
