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6 June, 20:33

Does work output exceed work input when a machine is used? A) Yes, it does, as machines create energy. B) It depends on the type of machine used. C) No, it doesn't, as machines are inefficient. D) No, it doesn't, as machines cannot create energy.

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  1. 6 June, 20:54
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    D. Machines can never create energy, they just convert it. Remember the law of conservation of matter. It cannot be created or destroyed.
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Home » Physics » Does work output exceed work input when a machine is used? A) Yes, it does, as machines create energy. B) It depends on the type of machine used. C) No, it doesn't, as machines are inefficient. D) No, it doesn't, as machines cannot create energy.
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