Question

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When do we say that work is done ?​

Answer 1

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Work is said to be done when a force causes displacement of an object in the direction of applied force.

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Answer 2

Answer❣

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

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