Average coefficients of linear expansion
A brass ring of diameter 10.00 cm at 19.7°C is heated and slipped over an aluminum rod of diameter 10.01 cm at 19.7°C. Assume the average coefficients of linear expansion are constant.
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An electric field of approximately 100 v/m is often observed near the surface of Earth. if this were the field over the entire surface, what would be the electric potential of a point on the surface?
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When the correlation between two variables is high, we know that?
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