1.有一个铜块挂在弹簧秤上,当铜块全部浸没水中时,弹簧秤的读数是( ).A.铜块所受重力 B.铜块所受浮力 C.铜块所受重力与浮力之差2.一个实心的铁球和一个实心的铝球在空气中用弹簧秤称时物
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![1.有一个铜块挂在弹簧秤上,当铜块全部浸没水中时,弹簧秤的读数是( ).A.铜块所受重力 B.铜块所受浮力 C.铜块所受重力与浮力之差2.一个实心的铁球和一个实心的铝球在空气中用弹簧秤称时物](/uploads/image/z/4853188-28-8.jpg?t=1.%E6%9C%89%E4%B8%80%E4%B8%AA%E9%93%9C%E5%9D%97%E6%8C%82%E5%9C%A8%E5%BC%B9%E7%B0%A7%E7%A7%A4%E4%B8%8A%2C%E5%BD%93%E9%93%9C%E5%9D%97%E5%85%A8%E9%83%A8%E6%B5%B8%E6%B2%A1%E6%B0%B4%E4%B8%AD%E6%97%B6%2C%E5%BC%B9%E7%B0%A7%E7%A7%A4%E7%9A%84%E8%AF%BB%E6%95%B0%E6%98%AF%28+%29.A.%E9%93%9C%E5%9D%97%E6%89%80%E5%8F%97%E9%87%8D%E5%8A%9B+B.%E9%93%9C%E5%9D%97%E6%89%80%E5%8F%97%E6%B5%AE%E5%8A%9B+C.%E9%93%9C%E5%9D%97%E6%89%80%E5%8F%97%E9%87%8D%E5%8A%9B%E4%B8%8E%E6%B5%AE%E5%8A%9B%E4%B9%8B%E5%B7%AE2.%E4%B8%80%E4%B8%AA%E5%AE%9E%E5%BF%83%E7%9A%84%E9%93%81%E7%90%83%E5%92%8C%E4%B8%80%E4%B8%AA%E5%AE%9E%E5%BF%83%E7%9A%84%E9%93%9D%E7%90%83%E5%9C%A8%E7%A9%BA%E6%B0%94%E4%B8%AD%E7%94%A8%E5%BC%B9%E7%B0%A7%E7%A7%A4%E7%A7%B0%E6%97%B6%E7%89%A9)
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