work and energy, Physics

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a person holds of hay over his head for 30 min and gets tired . has he done some wirk or not? justify your answer

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Determine the frequency spectrum of a signal, Figure shows the frequency sp...

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A mirror cleaned with an alcohol solution is slightly colder right after it is cleaned. Why?

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The idea that everything is made up of very small particles has been developed over many years supported by several experiments: (i)                Brownian motion :

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Define binding energy, Q. Define: binding energy. The energy equal of ...

Q. Define: binding energy. The energy equal of mass defect is called as binding energy. ∴ Binding energy = [Zm P + Nm n - m] c 2 = Δm c 2 . Here, Δm is the mass defe

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