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What principal of a lever is being used in this photograph? A. A bottle opener is a type of lever that reduces the input force required by reducing the distance over which the force is applied. B. A bottle
asked
Dec 4, 2016
Physics
middle-school
1
answer
2
votes
77.2k
views
How is the survival of indigenous music and culture related to the challenges of modernization and environmental degradation?
asked
Nov 19, 2016
Social Studies
high-school
1
answer
5
votes
176k
views
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