A 500-N parachutist opens his chute and experiences an air resistance force of 800 N. The net force on the parachutist is

A) 300 N downward.
B) 500 N downward.
C) 800 N downward.
D) 300 N upward.
E) 500 N upward.


D

Environmental & Atmospheric Sciences

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On a worldwide basis ________ provides the largest percentage of renewable energy.

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Mali is a former French colony in West Africa. It has been independent since 1960 but remains heavily dependent upon France for financial assistance, and often has to yield to French geopolitical decisions to get aid from France. Mali suffers from a textbook case of

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Environmental & Atmospheric Sciences

Which of the following factors control the nature of volcanic eruption?

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Environmental & Atmospheric Sciences