Work/Energy problem A pincube machine accelerates a brass cube. Before the cube is fired, the machine has stored a potential energy of 0.97 J. After the cube is fired from the machine, it has gained a kinetic energy of 0.21 J . The potential energy at this point is 0 J. How much work did friction in the system do? (Hint: don't forget the negative sign) Thank you for your time. :)

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ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
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Work/Energy problem

A pincube machine accelerates a brass cube. Before the cube is fired, the machine has stored a potential energy of 0.97 J. After the cube is fired from the machine, it has gained a kinetic energy of 0.21 J . The potential energy at this point is 0 J. How much work did friction in the system do? (Hint: don't forget the negative sign)

Thank you for your time. :)

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