MIKE是一位中学生
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 12:38:53
![MIKE是一位中学生](/uploads/image/f/698737-49-7.jpg?t=MIKE%E6%98%AF%E4%B8%80%E4%BD%8D%E4%B8%AD%E5%AD%A6%E7%94%9F)
LinTaoisamiddlestudentwholikesmusicverymuch.Becauseofhishobby,healwayslistentomusicwhenhedoeshishome
C1000MG=1G1000G=1KG所以4.2*10的7次方mg=42kg
答案B啊50千克A500千克C5千克D500千克
MYBUSYSUNDYLastsundyIhadaquickbreakfastandwenttoanorphanage.YoumayaskmewhyIwenttothere,becauseIamavo
手打如下:MynameisLinTao.Recentlyourschoolhashelddifferentkindsofactivities.Look!Therearemanystudentsplay
Mikewhoismyfriendisaddictedtocomputergames,ithasgreateffectsonhisstudy,Iwillhelphim.lwilltellhimplay
G=mg.(重力=质量*重力常数)g=9.8N/Kg(表示质量为1千克的物体受到的重力为9.8牛)计算时通常将g看成10n/kg所以50n约等于5kg故答案为c
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490牛已知:m=50千克,g=9.8牛/千克求G=?解:G=mg=50千克X9.8牛/千克=490牛
5×104克=50千克B
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Mikeisoneofourgoodfriends.
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