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Efficiency can be calculated using the formula: Efficiency (%) = (Actual Mechanical Advantage / Ideal Mechanical Advantage) × 100. In this case, the efficiency would be (3 / 4) × 100 = 75%. Therefore, the device has an efficiency of 75%.

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5mo ago

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Mechanical advantage of a compound machine?

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The ideal MA is 47.


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The mechanical advantage (MA) is usually less than the ideal mechanical advantage (IMA) for a machine due to factors such as friction, inefficiencies in the machine's design, and energy losses through heat or sound. These factors cause the input work to be greater than the output work, resulting in a lower actual mechanical advantage compared to the ideal mechanical advantage.


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How does the size of a ideal mechanical advantage compares to the mechanical advantage?

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