Cumulus clouds generally occur in an atmospheric state of
A) stability.
B) instability.
C) cool, dry adiabatics.
D) warm, moist adiabatics.
Answer: B
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Newton's Second Law in 1 Dimension: An object that weighs 75 N is pulled on a horizontal surface by a horizontal pull of 50 N to the right. The friction force on this object is 30 N to the left. What is the acceleration of the object?
A. 0.27 m/s2 B. 1.1 m/s2 C. 2.6 m/s2 D. 11 m/s2
Exhibit 12-1
The figure below shows a graph of angular velocity versus time for a woman bicycling around a circular track.
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Use this exhibit to answer the following question(s).
Refer to Exhibit 12-1. What is her angular displacement (in rad) in the first 12 minutes?
A. 0 B. 2? C. 4? D. 16? E. 32?
James and John dive from an overhang into the lake below. James simply drops straight down from the edge. John takes a running start and jumps with an initial horizontal velocity of 25 m/s. Compare the time it takes each to reach the lake below
A) James reaches the surface of the lake first. B) John reaches the surface of the lake first. C) James and John will reach the surface of the lake at the same time. D) Cannot be determined without knowing the mass of both James and John. E) Cannot be determined without knowing the weight of both James and John.
How would the slope of your graph change if the volume of the solutions were doubled? Explain your answer