4. A plumber uses a rope to drag a heavy box 12 m across the shop....

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4. A plumber uses a rope to drag a heavy box 12 m across the shop. The rope makes an angle of 35 with the horizontal and the force applied is 280 N. How much work is done by the plumber? 4. A plumber uses a rope to drag a heavy box 12 m across the shop. The rope makes an angle of 35 with the horizontal and the force applied is 280 N. How much work is done by the plumber?