永磁铁把原来静止的小铁钉吸到高处,小铁钉获得了重力势能,磁铁的能量减少了吗?如果减少了,当它吸引足够多小铁钉之后,便会失去磁性吗?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/19 10:51:55
![永磁铁把原来静止的小铁钉吸到高处,小铁钉获得了重力势能,磁铁的能量减少了吗?如果减少了,当它吸引足够多小铁钉之后,便会失去磁性吗?](/uploads/image/z/12129099-51-9.jpg?t=%E6%B0%B8%E7%A3%81%E9%93%81%E6%8A%8A%E5%8E%9F%E6%9D%A5%E9%9D%99%E6%AD%A2%E7%9A%84%E5%B0%8F%E9%93%81%E9%92%89%E5%90%B8%E5%88%B0%E9%AB%98%E5%A4%84%2C%E5%B0%8F%E9%93%81%E9%92%89%E8%8E%B7%E5%BE%97%E4%BA%86%E9%87%8D%E5%8A%9B%E5%8A%BF%E8%83%BD%2C%E7%A3%81%E9%93%81%E7%9A%84%E8%83%BD%E9%87%8F%E5%87%8F%E5%B0%91%E4%BA%86%E5%90%97%3F%E5%A6%82%E6%9E%9C%E5%87%8F%E5%B0%91%E4%BA%86%2C%E5%BD%93%E5%AE%83%E5%90%B8%E5%BC%95%E8%B6%B3%E5%A4%9F%E5%A4%9A%E5%B0%8F%E9%93%81%E9%92%89%E4%B9%8B%E5%90%8E%2C%E4%BE%BF%E4%BC%9A%E5%A4%B1%E5%8E%BB%E7%A3%81%E6%80%A7%E5%90%97%3F)
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