Three 7.50-kgkg masses are at the corners of an equilateral triangle and located in space far from any other masses. a) If the sides of the triangle are 1.21 mm long, find the magnitude of the net force exerted on each of the three masses. b) How does your answer to part A change if the sides of the triangle are doubled in length?

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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.