What is the cost of using electrical energy to heat

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Q1. The horizontal component Fx is shown by the histogram below as function of position along x-axis. There is also a kinetic frictional force of 0.50 N between mass and surface.

Q2. If the price of electrical energy is 0.06737 dollars per kilowatt-hour, what is the cost of using electrical energy to heat water in a swimming pool (14.7 m x 11.7 m x 1.54 m) from 12.3 to 25.3 °C?

Reference no: EM1323335

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