关于Everyobjecthasweight的百科

•    Everyobjecthasweight.Butthecenterofitsweightisnotalw...

• 问题详情：   Everyobjecthasweight.Butthecenterofitsweightisnotalwaysinthemiddleoftheobject.Ifthetopofanobjectisheavierthanitsbottom,itwillfallovereasily.Wesaythatitscenterofgravity（引力）ishigh.Butifthebottomisheavier,itwon’tfalleasily.Thenwesaythatit...
• 2021-01-065092