一道物理题——压强嗯有一犯人,留下一个脚印,面积为140cm².现用垫片在脚印旁边的地面上,用弹簧测力计压着垫片,使之与脚印的深度相同,已知该垫片的面积为10cm²,弹簧测力计的示数为
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![一道物理题——压强嗯有一犯人,留下一个脚印,面积为140cm².现用垫片在脚印旁边的地面上,用弹簧测力计压着垫片,使之与脚印的深度相同,已知该垫片的面积为10cm²,弹簧测力计的示数为](/uploads/image/z/12069833-41-3.jpg?t=%E4%B8%80%E9%81%93%E7%89%A9%E7%90%86%E9%A2%98%E2%80%94%E2%80%94%E5%8E%8B%E5%BC%BA%E5%97%AF%E6%9C%89%E4%B8%80%E7%8A%AF%E4%BA%BA%2C%E7%95%99%E4%B8%8B%E4%B8%80%E4%B8%AA%E8%84%9A%E5%8D%B0%2C%E9%9D%A2%E7%A7%AF%E4%B8%BA140cm%26sup2%3B.%E7%8E%B0%E7%94%A8%E5%9E%AB%E7%89%87%E5%9C%A8%E8%84%9A%E5%8D%B0%E6%97%81%E8%BE%B9%E7%9A%84%E5%9C%B0%E9%9D%A2%E4%B8%8A%2C%E7%94%A8%E5%BC%B9%E7%B0%A7%E6%B5%8B%E5%8A%9B%E8%AE%A1%E5%8E%8B%E7%9D%80%E5%9E%AB%E7%89%87%2C%E4%BD%BF%E4%B9%8B%E4%B8%8E%E8%84%9A%E5%8D%B0%E7%9A%84%E6%B7%B1%E5%BA%A6%E7%9B%B8%E5%90%8C%2C%E5%B7%B2%E7%9F%A5%E8%AF%A5%E5%9E%AB%E7%89%87%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BA10cm%26sup2%3B%2C%E5%BC%B9%E7%B0%A7%E6%B5%8B%E5%8A%9B%E8%AE%A1%E7%9A%84%E7%A4%BA%E6%95%B0%E4%B8%BA)
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