Mass1 (4 kg) sits on top of mass 2 (10 kg), which rests on a frictionless surface (Figure). The coefficient of static friction between mass 1 and mass 2 is 0.1 . A string of length 10 m is tied to mass 2, and both masses are swung around in a horizontal circle. Calculate the maximum speed of the masses.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.