W(wng)վB P(gun)҂ (lin)ϵʽ 朽 VI(y)(w) Ϣ
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2021ѽ(jng)_ĻСRԭ֪Rc(din)(10)w£
46.ʣrֵı|(zh)ʣrֵD(zhun)ʽ(dng)ʣrֵD(zhun)rʣrֵͿ׃YP(gun)ϵ㱻w(wʣrֵͿ׃YP(gun)ϵ)
47.ʣrֵm'
=m/v(mʣrֵv׃Y)
=ʣڄ/Ҫڄ
=ʣڄӕrg/Ҫڄӕrg
48.YЙC(j)(gu)
=cv(c׃Yv׃Y)
=(Y-v)v
=(Y-(m/m'))(m/m')
=(Y-(/m'))(/m')
ע⣺cʣrֵһӵģm=
49.Ya(chn)һĂAΣC(j)ʒl(f)KߝqΣC(j)AڵĻAҲǽ(jng)A
50.Yxλԭt֮һ˙(qun)ԭt(qing){(dio)䌍(sh)ֻΙ(qun)ҕͲJ(rn)˵(qun)l(f)չ(qun)
ԴδעЇоW(wng)\ϢW(wng)YӍµȾD(zhun)dW(wng)վD(zhun)dڂfϢ֮Ŀζٝͬ^c(din)C(sh)(ni)ݵ挍(sh)漰(qun)}Ո(lin)ϵվTԸĻhýwW(wng)վˏıW(wng)վdʹ횱W(wng)վע"Դ"ؓ(f)(qun)ȷ؟(z)
ԴעЇоW(wng)D(zhun)dՈ(lin)ϵT@(yng)S
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ߴaP(gun)ע
˽Ϣ