A horizontal spring with a spring constant k = 126 kN/m is relaxed from an extension x = 9.3 cm back to its unstretched length. Calculate the change in potential energy in Joules to 2 s.f. Your Answer: Ancwor

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.