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Physics, 22.06.2019 17:30
Does heating a metal wire increase or decrease its electrical resistance? why?
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Physics, 22.06.2019 22:00
Awhite-blue star is hotter than a red star. select the best answer from the choices provided true or false
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Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0×1026 kg , radius = 2.5×1010 m , rotation period 16.1 h , orbital period 6.01×104 d and is 4.6×109 km from the sun.]
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Aboy throws a rock straight up into the air. it reaches the highest point of its flight after 2.5 se...
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