a 2.5 kg mass is initially at rest on a horizontal surface. Am applied force acts in the + x direction resulting in a displacement of 1.50 m. If the speed of the mass is 4.00 m/s at the 150 m mark and the applied force is 22.0 N, what is the coefficient of kinetic friction?

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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.