Dennis's speed increases after he dives from a hovering helicopter. Relative to an observer in the helicopter, the momentum of Dennis

A. also increases.
B. decreases.
C. remains unchanged.
D. all of the above


Answer: A

Environmental & Atmospheric Sciences

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The climate type found in most of the southeast United States is:

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Chlorinated hydrocarbons have ________ toxicity for sensitive organisms and remain in the soil for a ________ time.

A. Medium; long B. High; long C. Low; short D. Low; long E. High; short

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Fill in the blank(s) with the appropriate word(s).

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