3.00 x 103 kg 2.00 x 103 kg The two barges shown here are coupled by a cable of negligible mass. The mass of the front barge is 2.00 x 10° kg and the mass of the rear barge is 3.00 x 10° kg. A tugboat pulls the front barge with a horizontal force of magnitude 19 x 10° N and the frictional forces of the water on the front and rear barges are 8 x 10° N and 10.0 × 10° N respectively. Find the horizontal acceleration of the barges and the tension in the connecting cable. m/s? a = • T = x 10° N

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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.