Science, asked by adoreyouuuuuu, 8 months ago

1. What is the useful work done by a machine called ? 2. To which machine is the formula , V.R. = l/h related ? 3. Name a machine that makes our work easier by changing the direction of effort . 4. M. A. is less than V. R. because M. A. Is reduced by ....?

answer in one word

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Answered by Anonymous

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Answer:

pls mark me as brainliest

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