What is rosies power output. a long straight wire carries a, Ask an Expert

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Q. Rosie (mass 47 kg) pushes a box with a horizontal force of 150 N (33.72 lb) at a speed of 16 m/min. What is Rosie's power output? Answer in units of W.

Q. A long, straight wire carries a current of 44 A. The magnetic field produced by this current at a certain point is 8.0 x10-5 T. How far is the point from the wire?

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