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Problem 25.2: Find the work done

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このアニメーションでは等電位線が示される(単位は長さがm, 電位が V).電子(赤)の位置の電位はすぐ上に表示される.電子はマウスをつかって移動できる.電子を位置[x, y] = [1.1m, -1.5 m] から [x, y] = [-1.6 m, 1.2 m]に移動するとき外力がする仕事はどれだけか? Restart.

Problem authored by Mario Belloni and Wolfgang Christian and modified by Melissa Dancy.

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