临沂市三甲医院:help me with this headache
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空间两质点的质量分别m1,m2,彼此以万有引力相互作用。开始时两质点静止,相距r,在万有引力作用下相互靠近并碰撞。求两质点从开始运动到相碰所经历的时间。
我真的是没辙了,望高人来解救。
积分也有积分的难处呀
高考题,不会吧
我真的是没辙了,望高人来解救。
积分也有积分的难处呀
高考题,不会吧
用积分
次题为某年高考题,查阅相关参考书即可见其详解!
help me with this headache
help me with this headache
help me translate this
help me translate this sentence
Please help me with science!
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help me please translate this sentence thanks.
who can help me write this....