gc physics textbook chapter 6 problems (id: c831b826b)

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 with k = 53N/m hangs vertic zwx f/ey5(8 98r hfj9adn+uml/y oe7bally next ewec ednp ;g vqq70-59to a ruler. The end of the spring is next to the 15-cm mark on the ruler. If a 2.5-kg mass is now attached t 7 dc wqepng;50qe-v9eo the end of the spring, where will the end of the spring line up with the ruler marks?    cm

参考答案: 61±2%


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