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01.03.2021 •
Physics
The potential energy of a body of mass m is given by U=-mgx+ one 1/2kx^2. The corresponding force is?
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Ответ:
D) a Battery
Explanation:
The best real-life example of direct current is a battery. Batteries have positive and negative terminals on a battery, the electrons in the wires will begin to flow to produce a current.