An athlete, swimming at a constant speed, covers a distance of 263 m in a time period of 4 minutes and 42 seconds. The drag force exerted by the water on the swimmer is 71.0 N. What is the power the swimmer must provide to overcome that drag force.

The text compares alternating current with direct current. how are they different? a alternating current reverses direction in the electrical wiring. direct current flows in one direction only. b direct current reverses direction in the electrical wiring. alternating current flows in one direction only. c direct current is powered by solar energy. alternating current is powered by electrical energy. d alternating current does not move in the electrical wiring. direct current does move in the electrical wiring.