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Mathematics, 02.02.2021 17:50 joshuasanders8862
Erin is trying to lift a piano to the second story of a building. How many pulleys would require the least amount of effort force from Erin.
A. 1 pulley
B. 2 pulley
C. 3 pulley
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Answers: 3
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Erin is trying to lift a piano to the second story of a building. How many pulleys would require the...
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