In a closed system, energy is equal to potential energy plus kinetic energy. A. mechanical B. electrical C. thermal D. chemical

Well, Your answer is Mechanical. Because, The Mechanical energy is the sum of the kinetic energy and the potential energy. In the closed systems, The mechanical energy is equel to potential energy plus kinetic energy.

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By Itsbrazts

Mechanical Energy

Explanation:  The Mechanical energy of an  object  is equal to Potential energy plus Kinetic energy.

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dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.