Balls rotate around their center of mass
A ball of 100 g and a ball of 240 g are join by a 34 cm long, mass-less, rigid rod. The balls rotate around their center of mass at 120 rpm.
Evaluate the speed of the ball of 100 g?
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The wire carries a current of 1.5 A eastward and moves horizontally to the north. When a magnetic field of .2 T points into the surface, determine the surface's coefficient of friction of the wire moves with the acceleration of around 1.04 m/s2.
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An LR circuit can be employed as a ‘phase shifter’. Suppose that an input source voltage V = V_o*sin (wt+ Phi) is joined across a series combination of the inductor L = 55mH and resistor R.
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