Work-Energy Theorem: A certain car traveling at 34.0 mph skids to a stop in 29 meters from the point where the brakes were applied. In approximately what distance would the car have stopped had it been going 105.4 mph?
A. 279 m
B. 158 m
C. 90 m
D. 51 m
E. 29 m
Answer: A
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A 600-kg car makes a 90° turn. Its speed before the turn is 21.0 m/s and after the turn it is 24.0 m/s. What is the magnitude of the change in the car's momentum?
A) 19.1 × 103 kg?m/s B) 10.2 × 103 kg?m/s C) 9.55 × 103 kg?m/s D) 12.0 × 103 kg?m/s E) 22.2 × 103 kg?m/s
What is erupting out of the geysers on Triton?
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Why is the chemical evolution model preferred by scientists over other theories for the origin of life on Earth?
A) it is the theory that best fits the available data B) because we have been able to create Life in the laboratory C) because it was written down in ancient scriptures D) because the other theories have been shown to be incorrect
The lithosphere of a planet is the layer that consists of
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