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1) Which of the following explains why a bicycle uses a gear? A.)The gear increases the effort force needed. B.)The gear increases resistance force. C.)The gear decreases effort force. D.)The gear decreases
answered
May 13, 2017
Physics
high-school
2
votes
16.5k
views
To meet demand, hunters kill how many buffalo a day?
answered
Feb 20, 2016
History
middle-school
2
votes
18.3k
views
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