gc physics textbook chapter 6 problems (id: e2310acf6)

本题目来源于试卷: gc physics textbook chapter 6 problems，类别为 IB物理学

[填空题]
A spring has $k=88$ N/m. Use a graph to determine the work needed to stretch it from $x=3.8$ cm to
$x=5.8$cm, where $x$ is the displacement from its unstretched length    J

参考答案: 0.084±2%


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