1. Three objects with masses mi 2.0 kg, m2 = 4.0 kg, and m3 = 6.0 kg, respectively, are attached by strings over frictionless pulleys, as indicated in the figure. The coefficient of kinetic friction between m2 and the tabletop is 0.15. Assume that the system is released from rest. Determine tension T1, T2, and the acceleration a of the system. Т2 Ti

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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.