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锟斤拷锟斤拷锟斤拷锟斤拷锟角斤拷锟絵锟斤拷锟斤拷锟斤拷(j锟斤拷)之一锟斤拷锟斤拷锟斤拷锟絵目锟侥诧拷锟街條锟斤拷锟絒锟斤拷锟斤拷锟斤拷锟絇(gu锟斤拷n)锟侥革拷锟斤拷之锟斤拷锟斤拷锟斤拷锟角匡拷锟皆從凤拷锟斤拷锟斤拷锟斤拷锟斤拷去锟节撅拷锟絒锟斤拷锟絣锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷}锟斤拷锟斤拷锟斤拷

(2)锟斤拷锟斤拷锟斤拷锟紽(xi锟斤拷n)锟斤拷姆锟斤拷锟斤拷页锟斤拷[锟斤拷锟絣锟斤拷锟斤拷

锟斤拷锟巾問锟絵锟斤拷锟斤拷锟斤拷些锟絒锟斤拷锟絣锟斤拷锟斤拷锟斤拷锟节嗭拷锟絵锟斤拷锟斤拷锟斤拷锟絕锟斤拷之锟斤拷锟斤拷只要锟絁(r锟斤拷n)锟斤拷锟斤拷锟斤拷}锟叫碉拷锟斤拷锟斤拷锟紽(xi锟斤拷n)锟斤拷锟斤拷R锟斤拷l锟斤拷锟斤拷锟斤拷(y锟斤拷ng)锟斤拷锟揭筹拷锟絒锟斤拷锟絣锟斤拷锟斤拷

(3)锟斤拷锟斤拷锟斤拷锟絕锟教的凤拷锟斤拷锟揭筹拷锟絒锟斤拷锟絣锟斤拷锟斤拷

锟斤拷锟斤拷锟絕锟教的凤拷锟斤拷锟角斤拷锟絵锟叫碉拷锟斤拷要一锟絟(hu锟斤拷n)锟斤拷通锟絕锟斤拷锟斤拷锟絕锟教的凤拷锟斤拷锟斤拷锟斤拷锟揭筹拷锟斤拷锟絵锟斤拷锟斤拷锟斤拷锟斤拷之锟絞锟侥冿拷(n锟斤拷i)锟斤拷聯(li锟斤拷n)系锟酵必傦拷l锟斤拷锟斤拷

(4)锟斤拷锟斤拷锟絯锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷規(gu锟斤拷)锟缴的約锟斤拷锟揭筹拷锟絒锟斤拷锟絣锟斤拷锟斤拷

锟絖锟斤拷锟斤拷锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟角斤拷锟絵锟斤拷锟斤拷锟斤拷(j锟斤拷)锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟斤拷锟斤拷锟斤拷一些锟斤拷锟斤拷規(gu锟斤拷)锟缴的約锟斤拷锟斤拷锟斤拷锟�锟斤拷锟揭傦拷锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟絕锟斤拷锟斤拷锟斤拷要锟斤拷循锟斤拷锟斤拷锟斤拷規(gu锟斤拷)锟缴侊拷锟絖锟斤拷锟斤拷锟絯锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟紷一锟絒锟斤拷锟絣锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷斜锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟斤拷c(di锟斤拷n)炸锟窖烇拷锟絴(zh锟斤拷)锟斤拷锟斤拷鹊膬蓧K锟斤拷锟斤拷锟斤拷c(di锟斤拷n)锟斤拷锟斤拷锟� 19锟斤拷6 锟斤拷锟斤拷锟斤拷炸锟斤拷1 锟斤拷鐘ｏ拷锟斤拷一锟終锟戒到锟斤拷炸锟絚(di锟斤拷n)锟斤拷锟斤拷锟铰凤拷锟侥碉拷锟斤拷锟斤拷锟斤拷處锟斤拷锟斤拷锟斤拷锟絚(di锟斤拷n) 100 锟斤拷锟斤拷锟斤拷锟絣锟斤拷锟終锟斤拷锟节撅拷锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷锟絟(yu锟斤拷n)锟侥碉拷锟斤拷锟斤拷锟斤拷(锟秸氾拷锟斤拷锟斤拷锟斤拷計(j锟斤拷)锟斤拷)要锟斤拷锟斤拷诙锟斤拷K锟斤拷锟斤拷c(di锟斤拷n)锟斤拷锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷水平锟斤拷锟絰锟斤拷锟酵憋拷锟街�锟斤拷锟斤拷炸锟斤拷蓧K锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟斤拷锟斤拷锟絵锟斤拷锟紷锟斤拷一锟斤拷(g锟斤拷)锟絒锟斤拷锟絣锟斤拷锟斤拷锟揭傦拷锟斤拷锟斤拷通锟絕锟斤拷锟絯锟节憋拷炸前锟斤拷锟斤拷锟斤拷循锟斤拷锟斤拷锟斤拷規(gu锟斤拷)锟缴侊拷锟揭筹拷锟紷一锟絒锟斤拷锟絣锟斤拷锟斤拷锟斤拷炸锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷K锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟絫锟斤拷锟斤拷氐臅r(sh锟斤拷)锟絞锟斤拷t= = =2 锟斤拷锟斤拷锟斤拷锟絵锟叫碉拷锟斤拷锟斤拷r(sh锟斤拷)锟絞锟斤拷1锟斤拷锟斤拷锟斤拷锟斤拷锟叫讹拷锟斤拷一锟終锟斤拷锟絈直锟铰掞拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷锟絔锟斤拷炸前锟斤拷锟斤拷水平锟斤拷锟斤拷锟斤拷Q直锟斤拷锟斤拷膭锟�(d锟斤拷ng)锟斤拷锟截猴拷锟斤拷锟斤拷锟皆確锟斤拷锟节讹拷锟終锟斤拷斜锟较掞拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟絖锟斤拷锟斤拷锟絯锟斤拷炸前锟斤拷锟斤拷\(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟襟，就匡拷锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)規(gu锟斤拷)锟缴和勶拷(d锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟�锟斤拷

(5)锟斤拷锟絵锟叫的旓拷(sh锟斤拷)锟絎(xu锟斤拷)锟絇(gu锟斤拷n)系锟揭筹拷锟絒锟斤拷锟絣锟斤拷锟斤拷

锟斤拷锟絖锟斤拷示锟斤拷D锟斤拷锟紿锟杰庯拷锟斤拷锟揭傦拷锟斤拷锟斤拷锟絵锟斤拷锟斤拷锟斤拷锟絣(f锟斤拷)思路锟斤拷锟斤拷锟斤拷還锟斤拷通锟絕锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)锟絇(gu锟斤拷n)系锟揭筹拷锟絵锟叫碉拷锟絒锟斤拷锟絣锟斤拷锟斤拷锟紷锟絅锟斤拷锟斤拷锟斤拷锟紿锟节幾何癸拷W(xu锟斤拷)锟斤拷锟斤拷锟絕锟斤拷膽锟�(y锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟巾問锟絵锟斤拷也锟斤拷(j锟斤拷ng)锟斤拷锟斤拷(y锟斤拷ng)锟斤拷锟斤拷

(6)锟斤拷锟斤拷锟斤拷锟叫岋拷锟斤拷锟絒锟斤拷锟絣锟斤拷锟斤拷

锟斤拷些锟絵目锟斤拷锟斤拷锟絆(sh锟斤拷)锟斤拷锟斤拷锟斤拷模锟斤拷锟角诧拷锟斤拷锟絖锟侥ｏ拷锟斤拷锟斤拷直锟斤拷處锟斤拷锟斤拷只锟斤拷恰锟斤拷(d锟斤拷ng)?sh锟斤拷)貙锟斤拷?f锟斤拷)锟絪锟斤拷模锟斤拷锟斤拷锟絒锟斤拷锟斤拷锟斤拷锟诫化模锟斤拷锟紻(zhu锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷锟絵锟斤拷Q锟斤拷

(7)锟斤拷锟絇(gu锟斤拷n)锟絀锟絑(y锟斤拷)锟斤拷锟叫岋拷锟斤拷锟絒锟斤拷锟絣锟斤拷

锟斤拷锟斤拷锟斤拷锟絵锟斤拷锟斤拷锟斤拷見锟斤拷锟絇(gu锟斤拷n)锟絀锟斤拷锟絑(y锟斤拷)锟叫ｏ拷锟斤拷锟紽(xi锟斤拷n)锟斤拷O值锟絣锟斤拷锟斤拷锟斤拷锟絑(y锟斤拷)锟斤拷锟斤拷锟斤拷锟�锟斤拷锟斤拷小锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟絒锟斤拷锟斤拷某些锟斤拷锟斤拷锟斤拷锟斤拷取锟斤拷锟斤拷值;锟斤拷锟紽(xi锟斤拷n)锟斤拷锟斤拷锟诫化模锟酵碉拷锟斤拷锟絑(y锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷變锟斤拷锟斤拷锟斤拷锟絧锟絴(zh锟斤拷)锟杰桿锟斤拷锟解滑水平锟斤拷龋锟斤拷锟阶★拷P(gu锟斤拷n)锟絀锟斤拷锟絑(y锟斤拷)锟斤拷锟节撅拷锟絒锟斤拷锟絣锟斤拷锟斤拷锟斤拷使锟斤拷锟絵锟絗锟斤拷锟紻锟斤拷锟斤拷

(8)锟斤拷锟絵锟絆(sh锟斤拷)锟紻锟斤拷锟叫岋拷锟斤拷锟絒锟斤拷锟絣锟斤拷

锟叫碉拷锟斤拷锟斤拷锟絵锟侥诧拷锟街條锟斤拷锟絒锟斤拷锟斤拷锟絵目锟侥圖锟斤拷锟叫ｏ拷锟結(ji锟斤拷)锟斤拷锟絵锟絆(sh锟斤拷)锟絣锟斤拷锟斤拷锟斤拷锟紻锟斤拷锟斤拷锟侥圖锟斤拷锟斤拷锟节撅拷锟絒锟斤拷锟絣锟斤拷锟斤拷锟斤拷锟斤拷锟揭筹拷锟斤拷锟絵途锟斤拷锟斤拷

锟斤拷(g锟斤拷)锟饺凤拷锟斤拷锟揭傦拷锟斤拷知锟斤拷锟斤拷锟狡濓拷锟斤拷锟绞絝=qVBsinθ(θ锟斤拷B锟絚V锟侥夾锟角ｏ拷锟斤拷(d锟斤拷ng)V⊥B锟絩(sh锟斤拷)锟斤拷f=qVB锟斤拷V//B锟絩(sh锟斤拷):f=0)锟斤拷锟斤拷么锟揭傦拷要锟斤拷么锟斤拷锟絰锟斤拷锟斤拷?通锟斤拷同锟絎(xu锟斤拷)锟斤拷锟斤拷記硬锟斤拷f锟斤拷锟斤拷锟斤拷锟斤拷q锟斤拷锟斤拷锟�锟斤拷v锟斤拷锟劫讹拷……锟斤拷锟斤拷锟斤拷(d锟斤拷ng)然某些同锟絎(xu锟斤拷)锟紹锟紷些锟斤拷母锟斤拷锟斤拷什么锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷么去弄锟斤拷锟斤拷锟斤拷锟揭傦拷知锟斤拷锟紷锟斤拷(g锟斤拷)锟斤拷式锟斤拷知锟斤拷锟斤拷母锟斤拷锟斤拷锟斤拷锟絰锟斤拷锟斤拷锟揭傦拷锟斤拷锟紷锟斤拷(g锟斤拷)锟角讹拷去锟斤拷锟絰锟斤拷锟斤拷锟斤拷锟叫幾傦拷(g锟斤拷)锟斤拷锟截產(ch锟斤拷n)锟斤拷锟侥ｏ拷锟斤拷锟斤拷痛艌锟�(ch锟斤拷ng)之锟絞锟斤拷锟絇(gu锟斤拷n)系式锟斤拷锟斤拷么锟矫侊拷锟斤拷锟斤拷锟紷锟斤拷唯一锟斤拷變锟斤拷锟絇(gu锟斤拷n)系式什么?(f--v)锟紷锟斤拷(g锟斤拷)锟斤拷式锟斤拷K锟斤拷Q锟斤拷锟斤拷锟斤拷W(xu锟斤拷)锟较碉拷什么锟斤拷锟絵锟斤拷锟斤拷么锟斤拷蛷氐椎锟斤拷锟斤拷锟斤拷锟斤拷@锟斤拷(g锟斤拷)锟斤拷式锟斤拷锟斤拷锟絜锟斤拷(g锟斤拷)锟斤拷锟接ｏ拷锟斤拷(d锟斤拷ng)锟斤拷p=mv锟紷锟斤拷(g锟斤拷)锟斤拷式锟斤拷目锟斤拷锟斤拷锟叫撅拷锟絴(zh锟斤拷)锟斤拷锟絚锟劫讹拷之锟絞锟斤拷锟絇(gu锟斤拷n)系锟斤拷锟斤拷(d锟斤拷ng)锟斤拷锟侥达拷小锟角诧拷锟斤拷(hu锟斤拷)锟絣(f锟斤拷)锟斤拷锟斤拷變锟斤拷锟斤拷只锟絚锟斤拷锟劫讹拷锟斤拷锟絇(gu锟斤拷n)锟斤拷锟斤拷锟角無論锟斤拷锟絯锟斤拷么锟斤拷撞锟斤拷锟斤拷锟叫勶拷(d锟斤拷ng)锟斤拷锟截恒，锟斤拷锟斤拷锟叫勶拷(d锟斤拷ng)锟斤拷锟截恒定锟缴ｏ拷p前锟斤拷=p锟襟總伙拷p=p’′也锟斤拷锟斤拷锟斤拷m1v1+m2v2=m1v1′+m2v2锟斤拷锟斤拷么锟揭傦拷抓住“锟斤拷(d锟斤拷ng)锟斤拷锟角固讹拷锟斤拷”锟斤拷锟斤拷锟斤拷锟絉锟斤拷锟斤拷锟斤拷锟�(d锟斤拷ng)锟斤拷锟紷锟終锟斤拷同锟斤拷锟斤拷锟揭傦拷锟斤拷锟斤拷锟�(d锟斤拷ng)锟杰的時(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟叫撅拷什么锟斤拷?锟斤拷锟斤拷锟角凤拷變锟斤拷锟斤拷?锟斤拷锟紷锟絅锟斤拷式锟斤拷锟杰匡拷锟斤拷锟揭伙拷锟�(g锟斤拷)锟铰癸拷(ji锟斤拷)一锟斤拷(g锟斤拷)锟铰癸拷(ji锟斤拷)锟斤拷锟斤拷锟斤拷(j锟斤拷)锟斤拷式锟叫憋拷锟斤拷锟斤拷锟絥锟斤拷知锟絉(sh锟斤拷)一一锟斤拷锟斤拷锟酵�锟斤拷锟斤拷锟斤拷锟斤拷A(ch锟斤拷)锟斤拷一锟斤拷锟斤拷锟紸(ch锟斤拷)锟角非�锟斤拷锟侥★拷

锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷锟斤拷锟斤拷锟�(f锟斤拷)锟斤拷(x锟斤拷)锟斤拷锟斤拷
 

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚(di锟斤拷n)

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號(h锟斤拷o)