1luhhjenesis18 1luhhjenesis18

20-03-2021
Physics

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a wheelbarrow contains two simple machines - a lever and a wheel and ax. for a certain wheelbarrow, the lever has an efficiency of 72%, and the wheel and axle has an efficiency of 64%. what is the overall efficiency of the wheelbarrow?

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shaunahollland shaunahollland

20-03-2021

72% + 64%= 136/2 = 68% efficiency

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