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Abookshelf is 2m long, with supports at its end (p and q). a book weighing 10n is placed in the middle of the shelf. what are the upward forces?
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Describe the path of the electric current through a circuit?
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If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?
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Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?
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Abookshelf is 2m long, with supports at its end (p and q). a book weighing 10n is placed in the midd...
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