Find the minimum diameter
Find the minimum diameter of an l = 15.2 m long brass wire that will stretch no more than 8.94 mm when a mass of 301 kg is hung on the lower end. (Hint: The Young's modulus of brass is 91.0 GPa.)
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The electric potential in a certain region of space is given by V = -7.5x2 + 3x, where V is in volts and x is in meters. In this region the equipotential surfaces are
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