A m1 = 1.15-kg aluminum block and a m2 = 8.00-kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle ? = 34.5°) as shown in the figure. (For aluminum on steel,?s = 0.6 and?k = 0.47.For copper on steel,?s = 0.53and ?k = 0.36. (a) the acceleration of the two blocks? (b) the tension in the string?

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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.