关于两道物理题(一道电学,一道力学)1.电能表额定电流为5A,在3A,5A,7.5A中应该选择那种型号的保险丝,为什么?2.两条即将靠岸的船,它们离岸的距离相等,一条船将绳子套在岸边的木桩上,船上
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![关于两道物理题(一道电学,一道力学)1.电能表额定电流为5A,在3A,5A,7.5A中应该选择那种型号的保险丝,为什么?2.两条即将靠岸的船,它们离岸的距离相等,一条船将绳子套在岸边的木桩上,船上](/uploads/image/z/12044534-14-4.jpg?t=%E5%85%B3%E4%BA%8E%E4%B8%A4%E9%81%93%E7%89%A9%E7%90%86%E9%A2%98%EF%BC%88%E4%B8%80%E9%81%93%E7%94%B5%E5%AD%A6%2C%E4%B8%80%E9%81%93%E5%8A%9B%E5%AD%A6%EF%BC%891.%E7%94%B5%E8%83%BD%E8%A1%A8%E9%A2%9D%E5%AE%9A%E7%94%B5%E6%B5%81%E4%B8%BA5A%2C%E5%9C%A83A%2C5A%2C7.5A%E4%B8%AD%E5%BA%94%E8%AF%A5%E9%80%89%E6%8B%A9%E9%82%A3%E7%A7%8D%E5%9E%8B%E5%8F%B7%E7%9A%84%E4%BF%9D%E9%99%A9%E4%B8%9D%2C%E4%B8%BA%E4%BB%80%E4%B9%88%3F2.%E4%B8%A4%E6%9D%A1%E5%8D%B3%E5%B0%86%E9%9D%A0%E5%B2%B8%E7%9A%84%E8%88%B9%2C%E5%AE%83%E4%BB%AC%E7%A6%BB%E5%B2%B8%E7%9A%84%E8%B7%9D%E7%A6%BB%E7%9B%B8%E7%AD%89%2C%E4%B8%80%E6%9D%A1%E8%88%B9%E5%B0%86%E7%BB%B3%E5%AD%90%E5%A5%97%E5%9C%A8%E5%B2%B8%E8%BE%B9%E7%9A%84%E6%9C%A8%E6%A1%A9%E4%B8%8A%2C%E8%88%B9%E4%B8%8A)
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