Two blocks of masses m1=4kg and m2=3kg are placed in contact with each other on a frictionless horizontal surface . A constant horizontal forces F= 35N is applied to the block of mass m1. a) Determine the magnitude of the acceleration of the two -block system. b) Determine the magnitude of the contact force between the two blocks.

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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.