Èçͼ¼×Ëùʾ£¬Ôڹ⻬¾øÔµµÄˮƽÃæÉϹ̶¨×ÅÁ½¶Ô¼¸ºÎÐÎ×´ÍêÈ«ÏàͬµÄƽÐнðÊô°åPQºÍMN£¬P¡¢QÓëM¡¢NËÄ¿é½ðÊô°åÏ໥ƽÐеØÊúÖ±µØ·ÅÖã¬Æ丩ÊÓͼÈçͼÒÒËùʾ£®ÒÑÖªP¡¢QÖ®¼äÒÔ¼°M¡¢NÖ®¼äµÄ¾àÀ붼ÊÇd=0.2m£¬¼«°å±¾ÉíµÄºñ¶È²»¼Æ£¬¼«°å³¤¾ùΪL=0.2m£¬°å¼äµçѹ¶¼ÊÇU=6.0¡Á102V£®½ðÊô°åÓÒ²àΪÊúÖ±ÏòϵÄÔÈÇ¿´Å³¡£¬´Å¸ÐӦǿ¶ÈB=5¡Á102T£¬´Å³¡ÇøÓò×ã¹»´ó£®½ñÓÐÒ»ÖÊÁ¿Îªm=1¡Á10-4kg£¬µçÁ¿Îªq=2¡Á10-6CµÄ´ø¸ºµçСÇòÔÚˮƽÃæÉÏÈçͼ´ÓPQƽÐаå¼ä×ó²àÖеãOÑؼ«°åÖÐÖáÏßÒÔ³õËÙ¶Èv0=4m/s½øÈëƽÐнðÊô°åPQ£®
¾«Ó¢¼Ò½ÌÍø
£¨1£©ÊÔÇóСÇò¸Õ´©³öƽÐнðÊô°åPQ½øÈë´Å³¡Ë²¼äµÄËٶȣ»
£¨2£©ÈôҪСÇò´©³öƽÐнðÊô°åPQºó£¬¾­´Å³¡Æ«×ªÉäÈëƽÐнðÊô°åMNÖУ¬ÇÒÔÚ²»Ó뼫°åÏàÅöµÄÇ°ÌáÏ£¬×îÖÕÔÚ¼«°åMNµÄ×ó²àÖеãO¡äÑØÖÐÖáÏßÉä³ö£®Ôò½ðÊô°åQ¡¢M¼ä¾àÀë×î´óÊǶàÉÙ£¿
·ÖÎö£º£¨1£©Ð¡Çò×öÀàƽÅ×Ô˶¯£¬µç³¡Á¦ÓëÅ£¶ÙµÚ¶þ¶¨ÂÉ£¬¿ÉÇó³ö¼ÓËٶȴóС£¬´Ó¶øÈ·¶¨ËٶȵĴóСÓë·½Ïò£¬¼´¿ÉÇó½â£»
£¨2£©¸ù¾ÝÂåÂ××ÈÁ¦ÌṩÏòÐÄÁ¦£¬²¢½áºÏ¼¸ºÎ¹ØϵÓëÔ˶¯Ñ§¹«Ê½£¬¿ÉÇó³öƫתλÒÆ£¬´Ó¶ø¼´¿ÉÇó½â£®
½â´ð£º¾«Ó¢¼Ò½ÌÍø½â£º£¨1£©Ð¡ÇòÔÚPQ½ðÊô°åÖÐ×öÀàƽÅ×Ô˶¯£º
СÇòËùÊܵ糡Á¦F=qE=q
U
d
£¬
¶øСÇò¼ÓËÙ¶Èa=
F
m
 
¹Êa=
qU
md

a=
6¡Á102¡Á2¡Á10-6
0.2¡Á1¡Á10-4
m/s2=60m/s2

СÇòÔÚ°å¼äÔ˶¯µÄʱ¼ä t=
L
v0
=
0.2
4
s=0.05s
 
СÇòÔÚ´¹Ö±°å·½ÏòÉϵÄËٶȠvy=at=60¡Á0.05m/s=3m/s     
ÔòСÇòÀ뿪PQ°åʱµÄËÙ¶ÈΪvt=
v
2
0
+
v
2
y
=
42+32
m/s
=5m/s 
vtÑØÖÐÖáÏߵļнÇΪtan¦È=
vy
v0
=
3
4
                  
£¨2£©ÔÚPQ¼«°å¼ä£¬ÈôP°åµçÊƱÈQ°å¸ß£¬ÔòСÇòÏòP°åÆ«À룬½øÈëÓÒ²à´Å³¡ºó×öÔ²ÖÜÔ˶¯£¬ÓÉÔ˶¯µÄ¶Ô³ÆÐÔ£¬Ôò±ØÐëN°åµçÊƸßÓÚM°åµçÊÆ£¬ÆäÔ˶¯¹ì¼£ÈçͼaËùʾ£»Í¬ÀíÈôQ°åµçÊƱÈP°å¸ß£¬Ôò±ØÐëM°åµçÊƸßÓÚN°åµçÊÆ£¬ÆäÔ˶¯¹ì¼£ÈçͼbËùʾ£®·ñÔò²»¿ÉÄÜÔÚ²»Ó뼫°åÏàÅöµÄÇ°ÌáÏ£¬×îÖÕÔÚ¼«°åMNµÄ×ó²àÖеãO¡äÑØÖÐÖáÏßÉä³ö£®
СÇò½øÈë´Å³¡ºó×öÔ²ÖÜÔ˶¯£¬ÉèÔ˶¯°ë¾¶ÎªR£¬ÒòÂåÂØ×ÈÁ¦ÌṩÏòÐÄÁ¦£¬¼´£º
qvtB=m
v
2
t
R
  
ËùÒÔR=
mvt
Bq
=
1¡Á10-4¡Á5
2¡Á10-6¡Á5¡Á102
m=0.5m
   
ÔÚPQ¼«°å¼ä£¬ÈôСÇòÏòP°åÆ«£¬ÉèСÇòÉäÈëÓëÉä³ö´Å³¡µÄÁ½µã¼äµÄ¾àÀëΪha£»ÔÚPQ¼«°å¼ä£¬ÈôСÇòÏòQ°åÆ«£¬ÉèСÇòÉäÈëÓëÉä³ö´Å³¡µÄÁ½µã¼äµÄ¾àÀëΪhb£®ÓÉͼÖм¸ºÎ¹Øϵ£¨×¢£ºÍ¼Öа뾶²»Í¬£¬Îª¼ò±ã£¬Á½Í¼ºÏÒ»£©¿ÉËãµÃ£º
 ha=hb=2Rcos¦È=2¡Á0.5¡Á
4
5
m=0.8m 
СÇòÆ«ÀëÖÐÖáÏßµÄλÒÆ
Y²à=
1
2
at2=
1
2
¡Á60¡Á0.052m
=7.5¡Á10-2m
µ±Ð¡ÇòÏòP°åƫʱ£¬¸ù¾Ý¶Ô³ÆÐԿɵÃQM°å¼äµÄ¾àÀëΪ d1=ha-2(
d
2
+Y²à)=ha-d-2Y²à
  
µ±Ð¡ÇòÏòQ°åƫʱ£¬¸ù¾Ý¶Ô³ÆÐԿɵÃQM°å¼äµÄ¾àÀëΪd2=hb-2(
d
2
-Y²à)=hb-d+2Y²à
  
ÏÔÈ»d2£¾d1          
´úÈëÊý¾ÝµÃ d2=hb-d+2Y²à=0.8-0.2+2¡Á7.5¡Á10-2m=0.75m
Òò¶ø½ðÊô°åQ¡¢M¼ä¾àÀë×î´óΪ0.75m£®
´ð£º£¨1£©ÔòСÇò¸Õ´©³öƽÐнðÊô°åPQ½øÈë´Å³¡Ë²¼äµÄËٶȴóСΪ5m/s£¬·½ÏòÓëÖáÏߵļнÇÕýÇÐֵΪ
3
4
£»
£¨2£©ÈôҪСÇò´©³öƽÐнðÊô°åPQºó£¬¾­´Å³¡Æ«×ªÉäÈëƽÐнðÊô°åMNÖУ¬ÇÒÔÚ²»Ó뼫°åÏàÅöµÄÇ°ÌáÏ£¬×îÖÕÔÚ¼«°åMNµÄ×ó²àÖеãO¡äÑØÖÐÖáÏßÉä³ö£®Ôò½ðÊô°åQ¡¢M¼ä¾àÀë×î´óÊÇ0.75m£®
µãÆÀ£º±¾ÌâÉæ¼°Á¦¡¢Ô˶¯¡¢µç³¡¡¢´Å³¡ÒÔ¼°¶Ô³ÆÐÔµÈ֪ʶ¡¢·½·¨µÄ×ÛºÏÔËÓÃÄÜÁ¦£¬¿¼²éÂß¼­ÍÆÀíÄÜÁ¦¡¢×ۺϷÖÎöÄÜÁ¦¡¢ÔËÓÃÊýѧ֪ʶ½â¾öÎïÀíÎÊÌâÄÜÁ¦ºÍ̽¾¿ÄÜÁ¦£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

¾«Ó¢¼Ò½ÌÍø[Ñ¡×öÌâ]±¾Ìâ°üÀ¨A¡¢B¡¢CÈýСÌ⣬ÇëÑ¡¶¨ÆäÖÐÁ½Ì⣬²¢ÔÚÏàÓ¦µÄ´ðÌâÇøÓòÄÚ×÷´ð£®ÈôÈýÌⶼ×ö£¬Ôò°´A¡¢BÁ½ÌâÆÀ·Ö£®
A£®£¨Ä£¿é3-3£©
£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
 

A£®µ±ÆøÌ屻ѹËõʱ£¬·Ö×Ó¼ä¾àÀë±äС£¬±íÏÖΪ³âÁ¦£¬ËùÒÔ±ØÐèÓÃÁ¦²ÅÄÜѹËõ
B£®Òº¾§²¢²»ÊǾ§Ì壬µ«¾ßÓо§ÌåÒ»ÑùµÄ¹âѧ¸÷ÏòÒìÐÔ
C£®Ñ¸ËÙѹËõÆøÌåʱ£¬ÆøÌåζÈÒ»¶¨Éý¸ß
D£®Ò»µÎÓÍËá¾Æ¾«ÈÜÒºÌå»ýΪV£¬ÔÚË®ÃæÉÏÐγɵĵ¥·Ö×ÓÓÍĤµÄÃæ»ýΪS£¬ÔòÓÍËá·Ö×ÓµÄÖ±¾¶d=
VS

£¨2£©£¨4·Ö£©ÒÑÖªÌúµÄĦ¶ûÖÊÁ¿ÎªM£¬ÃܶÈΪ¦Ñ£¬°¢·ü¼ÓµÂÂÞ³£ÊýΪN0£®ÊÔÇóÒ»¿é±ß³¤ÎªdµÄÕý·½ÐÎÌú¿éÖк¬ÓÐÌúÔ­×ӵĸöÊýΪ
 
£®
£¨3£©Èçͼ¼×Ëùʾ£¬Í²ÐξøÈÈÆø¸×ƽ·ÅÔÚˮƽÃæÉÏ£¬ÓþøÈȵĻîÈû·â±ÕÒ»²¿·ÖÆøÌ壮»îÈûµÄºá½ØÃæ»ýΪS£¬ÖÊÁ¿Îªm£¬Íâ½ç´óÆøѹǿºãΪP0£®»îÈûÓëÆø¸×Ö®¼äÎÞĦ²ÁÇÒ²»Â©Æø£¬Æø¸×ÄÚÓÐÒ»¸öµç×èË¿¿ÉÒÔ¸øÆøÌå¼ÓÈÈ£®ÏÖ°ÑÆø¸×Á¢ÆðÀ´£¬ÈçͼÒÒËùʾ£¬·¢ÏÖ»îÈûϽµ¾àÀëΪh£¬ÔòÁ¢ÆðºóÆø¸×ÄÚÆøÌå·Ö×ÓÊÆÄÜ
 
£¨Ìî¡°±ä´ó¡±¡¢¡°±äС¡±»ò¡°²»±ä¡±£©£»µ±µç×è˿ͨµçºó²úÉúµÄÈÈÁ¿ÎªQʱ£¬»îÈû¸ÕºÃ»Øµ½Ô­À´µÄλÖô¦ÓÚƽºâ£¬ÔòÔڴ˹ý³ÌÖУ¬ÆøÌåÄÚÄÜÔö¼ÓÁË
 
£®£¨ÓÃÌâÖÐÒÑÖªÎïÀíÁ¿·ûºÅ±íʾ£©
B£®£¨Ä£¿é3-4£©
£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£º
 

A£®È«Ï¢ÕÕÏàÀûÓÃÁ˹âµÄÆ«ÕñÔ­Àí
B£®ÁÁ¶ÈÏàͬµÄ×ϹâÓëºì¹â²»»á·¢Éú¸ÉÉæÏÖÏó
C£®XÉäÏߵıÈ×ÏÍâÏ߸üÈÝÒ×·¢Éú¸ÉÉæÏÖÏó
D£®µØÃæÉϵÄÈË·¢ÏÖ£¬×øÔÚ¸ßËÙÀ뿪µØÇòµÄ»ð¼ýÀïµÄÈËг´úл±äÂýÁË£¬¶ø»ð¼ýÀïµÄÈË·¢ÏÖµØÃæÉϵÄÈËг´úлҲ±äÂýÁË£®
£¨2£©£¨4·Ö£©ÓÐÒ»Êø¸´É«¹âÖк¬ÓÐÁ½ÖÖµ¥É«¹â£¬ÔÚÕæ¿ÕÖÐa¹âµÄ²¨³¤´óÓÚb¹âµÄ²¨³¤£®ÈôÈô˸´É«¹âͨ¹ý°ëÔ²Ðβ£Á§×©£¬¾­¹ýÔ²ÐÄOÉäÏò¿ÕÆø£¬ÔòÏÂÁÐËĸö¹â·ͼÖзûºÏʵ¼ÊÇé¿öµÄÓУº
 

¾«Ó¢¼Ò½ÌÍø
£¨3£©Ò»ÁÐÑØxÖáÕý·½Ïò´«²¥µÄ¼òгºá²¨£¬ÔÚt=0ʱ¿Ì²¨¸ÕºÃ´«²¥µ½x=6m´¦µÄÖʵãA£¬ÈçͼËùʾ£¬ÒÑÖª²¨µÄ´«²¥ËÙ¶ÈΪ48m/s£®Çë»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ù´Óͼʾʱ¿ÌÆðÔÙ¾­¹ý
 
s£¬ÖʵãBµÚÒ»´Î´¦ÓÚ²¨·å£»
¢Úд³ö´Óͼʾʱ¿ÌÆðÖʵãAµÄÕñ¶¯·½³Ì£º
 
£®
¾«Ó¢¼Ò½ÌÍø
C£®£¨Ä£¿é3-5£©£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÓÐ
 

A£®µ¥É«¹â´Ó¹âÃܽéÖʽøÈë¹âÊè½éÖÊ£¬¹â×ÓµÄÄÜÁ¿²»±ä
B£®±´¿ËÀÕ¶û·¢ÏÖÁËÓ˺ͺ¬ÓË¿óÎïµÄÌìÈ»·ÅÉäÏÖÏ󣬴Ӷø½Òʾ³öÔ­×Ӻ˾ßÓи´Ôӽṹ
C£®µ±ÇâÔ­×ÓºËÍâµç×Ó´ÓµÚ3Äܼ¶Ô¾Ç¨µ½µÚ4Äܼ¶Ê±£¬ÇâÔ­×ÓÒ»¶¨ÎüÊÕÄÜÁ¿£¬µç×ӵĶ¯ÄÜÔö´ó
D£®ÔÚ¹âµçЧӦʵÑéÖУ¬ÈëÉä¹âÇ¿¶ÈԽǿ£¬²úÉúµÄ¹âµç×Ó³õ¶¯ÄܾÍÔ½´ó
£¨2£©ÏÈÍê³ÉÏÂÁк˷´Ó¦·½³Ì£¬ÔٻشðÌ⣮1327Al+24He¡ú1430Si+01n+
 
£»
¸ÃºË·´Ó¦ËùÊôºË·´Ó¦ÀàÐÍÊÇ
 

A£®Ë¥±ä            B£®È˹¤×ª±ä            C£®Áѱä
£¨3£©¹â»¬Ë®Æ½ÃæÉÏÒ»¸öÖÊÁ¿Îª0.2kgµÄСÇòA£¬ÒÔ3m/sµÄËÙ¶ÈÓëÁíÒ»¸öÖÊÁ¿Îª0.4kgµÄ¾²Ö¹Ð¡ÇòB·¢ÉúÕýÅö£¬ÅöºóСÇòAµÄËٶȴóС±äΪ1m/s£¬ÓëÔ­À´Ëٶȷ½ÏòÏà·´£¬ÔòÔÚÅöײ¹ý³ÌÖУ¬Ð¡ÇòAµÄ¶¯Á¿±ä»¯´óСΪ
 
kg?m/s£¬ÅöºóСÇòBµÄËٶȴóСΪ
 
m/s£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ¼×Ëùʾ£¬Äڱڹ⻬µÄ¾øÈÈÆø¸×ÊúÖ±Á¢ÓÚµØÃæÉÏ£¬¾øÈÈ»îÈû½«Ò»¶¨ÖÊÁ¿µÄÆøÌå·â±ÕÔÚÆø¸×ÖУ¬»îÈû¾²Ö¹Ê±´¦ÓÚAλÖã®ÏÖ½«Ò»ÖØÎïÇáÇáµØ·ÅÔÚ»îÈûÉÏ£¬»îÈû×îÖÕ¾²Ö¹ÔÚÈçͼÒÒËùʾµÄBλÖã®Éè·Ö×ÓÖ®¼ä³ýÏ໥ÅöײÒÔÍâµÄ×÷ÓÃÁ¦¿ÉºöÂÔ²»¼Æ£¬Ôò»îÈûÔÚBλÖÃʱÓë»îÈûÔÚAλÖÃʱÏà±È½Ï£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨2011?½­ËÕÄ£Ä⣩[Ñ¡×öÌâ]±¾Ìâ°üÀ¨A¡¢B¡¢CÈýСÌ⣬ÇëÑ¡¶¨ÆäÖÐÁ½Ì⣬²¢ÔÚÏàÓ¦µÄ´ðÌâÇøÓòÄÚ×÷´ð£®ÈôÈýÌⶼ×ö£¬Ôò°´A¡¢BÁ½ÌâÆÀ·Ö£®
A£®£¨Ñ¡ÐÞÄ£¿é3-3£©
£¨1£©ÓÉÒÔÏÂÊý¾ÝÄܹÀËã³öË®·Ö×ÓÖ±¾¶µÄÊÇ
D
D

A£®Ë®µÄÖÊÁ¿¡¢Ë®µÄÌå»ýºÍ°¢·ü¼ÓµÂÂÞ³£Êý
B£®Ë®µÄÖÊÁ¿¡¢Ë®µÄÃܶȺͰ¢·ü¼ÓµÂÂÞ³£Êý
C£®Ë®µÄĦ¶ûÖÊÁ¿ºÍ°¢·ü¼ÓµÂÂÞ³£Êý
D£®Ë®µÄĦ¶ûÌå»ýºÍ°¢·ü¼ÓµÂÂÞ³£Êý
£¨2£©ÈçͼÒÒËùʾ£¬ÓÃÒ»¸ùÓë¾øÈÈ»îÈûÏàÁ¬µÄϸÏß½«¾øÈÈÆø¸×Ðü¹ÒÔÚijһ¸ß¶È¾²Ö¹²»¶¯£¬Æø¸×¿ª¿ÚÏòÉÏ£¬ÄÚ·â±ÕÒ»¶¨ÖÊÁ¿µÄÆøÌ壨·Ö×Ó¼äµÄÏ໥×÷ÓÃÁ¦ºöÂÔ²»¼Æ£©£¬¸×ÄÚ»îÈû¿ÉÒÔÎÞĦ²ÁÒƶ¯ÇÒ²»Â©Æø£¬ÏÖ½«Ï¸Ïß¼ô¶Ï£¬ÈÃÆø¸××ÔÓÉÏÂÂ䣬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
BD
BD

A£®ÆøÌåѹǿ¼õС£¬ÆøÌå¶ÔÍâ½ç×ö¹¦
B£®ÆøÌåѹǿÔö´ó£¬Íâ½ç¶ÔÆøÌå×ö¹¦
C£®ÆøÌåÌå»ýÔö´ó£¬ÆøÌåÄÚÄܼõС
D£®ÆøÌåÌå»ý¼õС£¬ÆøÌåÄÚÄÜÔö´ó
£¨3£©Èçͼ¼×Ëùʾ£¬Ò»Ô²ÖùÐξøÈÈÆø¸×ÊúÖ±·ÅÖã¬Í¨¹ý¾øÈÈ»îÈû·â±Õ×ÅÒ»¶¨ÖÊÁ¿µÄÀíÏëÆøÌ壮»îÈûµÄÖÊÁ¿Îªm£¬ºá½ØÃæ»ýΪS£¬´Ëʱ»îÈû´¦ÓÚƽºâ״̬£¬ÆøÌåµÄζÈΪT1£®ÏÖͨ¹ýµçÈÈË¿»ºÂý¼ÓÈÈÆøÌ壬ÔÚÆøÌåÎüÊÕÈÈÁ¿ÎªQµÄ¹ý³ÌÖУ¬ÆøÌå¶Ô»îÈû×ö¹¦µÄ´óСΪW£®ÒÑÖª´óÆøѹǿΪp0£¬ÖØÁ¦¼ÓËÙ¶ÈΪg£¬²»¼Æ»îÈûÓëÆø¸×µÄĦ²Á£®Çó£º
¢ÙÆøÌåµÄѹǿ£»
¢Ú¼ÓÈȹý³ÌÖÐÆøÌåµÄÄÚÄÜÔö¼ÓÁ¿£»
B£®£¨Ñ¡ÐÞÄ£¿é3-4£©
£¨1£©ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ
AC
AC
£®
A£®¼¤¹â±ÈÆÕͨ¹âÔ´µÄÏà¸ÉÐÔºÃ
B£®×ÏÍâÏßÔÚË®ÖеĴ«²¥ËٶȴóÓÚºìÍâÏßÔÚË®ÖеĴ«²¥ËÙ¶È
C£®ÔÚ¹âµÄÑÜÉäʵÑéÖУ¬³öÏÖÃ÷ÌõÎƵĵط½¹â×Óµ½´ïµÄ¸ÅÂʽϴó
D£®½ÓÊÕµç´Å²¨Ê±Ê×ÏÈÒª½øÐе÷Ƶ
£¨2£©Ò»ÁÐÑØxÖáÕý·½Ïò´«²¥µÄ¼òгºá²¨£¬t=0ʱ¿ÌµÄ²¨ÐÎÈçͼÖÐʵÏßËùʾ£¬t=0.2sʱ¿ÌµÄ²¨ÐÎÈçͼ±ûÖÐÐéÏßËùʾ£¬Ôò£º
A£®ÖʵãPµÄÔ˶¯·½ÏòÏòÓÒ
B£®²¨µÄÖÜÆÚ¿ÉÄÜΪ0.27s
C£®²¨µÄ´«²¥ËٶȿÉÄÜΪ630m/s
D£®²¨µÄƵÂÊ¿ÉÄÜΪ1.25Hz
£¨3£©Èçͼ¶¡Ëùʾ£¬ABCΪ²£Á§ÈýÀâ¾µµÄºá½ØÃ棬¡ÏA=30¡ã£¬¡ÏB=60¡ã£¬BC=3cm£¬Ò»ÌõƽÐÐÓÚAC±ßµÄ¹âÏß´ÓOµã´¹Ö±ÉäÏòÀâ¾µ£¬OC=2cm£¬ÒÑÖªÀâ¾µ¶Ô¹âµÄÕÛÉäÂÊΪn=1.5£¬ÊÔÇó¹âÏßÔÚÀâ¾µÄÚ´«²¥µÄ×î¶Ìʱ¼äÊǶàÉÙ£¿
C£® £¨Ñ¡ÐÞÄ£¿é3-5£©
£¨1£©Õýµç×Ó£¨PET£©·¢Éä¼ÆËã»ú¶Ï²ãÏÔÏñµÄ»ù±¾Ô­ÀíÊÇ£º½«·ÅÉäÐÔͬλËØ
 
15
8
O
×¢ÈëÈËÌ壬²ÎÓëÈËÌåµÄ´úл¹ý³Ì£®
 
15
8
O
ÔÚÈËÌåÄÚË¥±ä·Å³öÕýµç×Ó£¬ÓëÈËÌåÄÚ¸ºµç×ÓÏàÓö¶øäÎÃðת»¯ÎªÒ»¶Ô¹â×Ó£¬±»Ì½²âÆ÷̽²âµ½£¬¾­¼ÆËã»ú´¦Àíºó²úÉúÇåÎúµÄͼÏ󣮸ù¾ÝPETÔ­Àí£¬»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ùд³ö
 
15
8
O
µÄË¥±äµÄ·½³Ìʽ
 
15
8
O¡ú
 
15
7
N+
 
0
1
e
 
15
8
O¡ú
 
15
7
N+
 
0
1
e
£®
¢Ú½«·ÅÉäÐÔͬλËØ
 
15
8
O
×¢ÈëÈËÌ壬
 
15
8
O
µÄÖ÷ÒªÓÃ;
B
B

A£®ÀûÓÃËüµÄÉäÏß       B£®×÷Ϊʾ×ÙÔ­×Ó
C£®²ÎÓëÈËÌåµÄ´úл¹ý³Ì  D£®ÓÐÑõºôÎü
¢ÛPETÖÐËùÑ¡µÄ·ÅÉäÐÔͬλËصİëË¥ÆÚÓ¦
¶Ì
¶Ì
£®£¨Ìî¡°³¤¡±»ò¡°¶Ì¡±»ò¡°³¤¶Ì¾ù¿É¡±£©
£¨2£©Ò»Á¾Ð¡³µÔڹ⻬ˮƽÃæÉÏÒÔv1=1m/sµÄËÙ¶ÈÏòÓÒÔ˶¯£¬Ð¡³µµÄÖÊÁ¿ÎªM=100kg£¬Ò»ÖÊÁ¿Îªm=50kgµÄÈË´ÓС³µµÄÓÒ¶ËÓ­ÃæÌøÉÏС³µ£¬½Ó´¥Ð¡³µÇ°µÄ˲¼äÈ˵ÄˮƽËٶȴóСΪv2=5.6m/s£®ÇóÈËÌøÉÏС³µºó£¬È˺ÍС³µµÄ¹²Í¬ËٶȺÍÈËÌøÉÏС³µµÄ¹ý³ÌÖÐÈ˶ÔС³µ×öµÄ¹¦£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2010-2011ѧÄêÖØÇìÊиßÈýÉÏѧÆÚÆÚÖп¼ÊÔ£¨Àí×Û£©ÎïÀí²¿·Ö ÌâÐÍ£ºÑ¡ÔñÌâ

Èçͼ¼×Ëùʾ£¬Äڱڹ⻬µÄ¾øÈÈÆø¸×ÊúÖ±Á¢ÓÚµØÃæÉÏ£¬¾øÈÈ»îÈû½«Ò»¶¨ÖÊÁ¿µÄÆøÌå·â±ÕÔÚÆø¸×ÖУ¬»îÈû¾²Ö¹Ê±´¦ÓÚAλÖá£ÏÖ½«Ò»ÖØÎïÇáÇáµØ·ÅÔÚ»îÈûÉÏ£¬»îÈû×îÖÕ¾²Ö¹ÔÚÈçͼÒÒËùʾµÄBλÖá£Éè·Ö×ÓÖ®¼ä³ýÏ໥ÅöײÒÔÍâµÄ×÷ÓÃÁ¦¿ÉºöÂÔ²»¼Æ£¬Ôò»îÈûÔÚBλÖÃʱÓë»îÈûÔÚAλÖÃʱÏà±È½Ï

A£®ÆøÌåµÄѹǿ¿ÉÄÜÏàͬ

B£®ÆøÌåµÄÄÚÄÜ¿ÉÄÜÏàͬ

C£®µ¥Î»Ìå»ýÄÚµÄÆøÌå·Ö×ÓÊýÒ»¶¨Ôö¶à

D£®Ã¿¸öÆøÌå·Ö×ÓµÄËÙÂÊÒ»¶¨Ôö´ó

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º½­ËÕÄ£Äâ ÌâÐÍ£ºÎÊ´ðÌâ

[Ñ¡×öÌâ]±¾Ìâ°üÀ¨A¡¢B¡¢CÈýСÌ⣬ÇëÑ¡¶¨ÆäÖÐÁ½Ì⣬²¢ÔÚÏàÓ¦µÄ´ðÌâÇøÓòÄÚ×÷´ð£®ÈôÈýÌⶼ×ö£¬Ôò°´A¡¢BÁ½ÌâÆÀ·Ö£®
A£®£¨Ñ¡ÐÞÄ£¿é3-3£©
£¨1£©ÓÉÒÔÏÂÊý¾ÝÄܹÀËã³öË®·Ö×ÓÖ±¾¶µÄÊÇ______
A£®Ë®µÄÖÊÁ¿¡¢Ë®µÄÌå»ýºÍ°¢·ü¼ÓµÂÂÞ³£Êý
B£®Ë®µÄÖÊÁ¿¡¢Ë®µÄÃܶȺͰ¢·ü¼ÓµÂÂÞ³£Êý
C£®Ë®µÄĦ¶ûÖÊÁ¿ºÍ°¢·ü¼ÓµÂÂÞ³£Êý
¾«Ó¢¼Ò½ÌÍø

D£®Ë®µÄĦ¶ûÌå»ýºÍ°¢·ü¼ÓµÂÂÞ³£Êý
£¨2£©ÈçͼÒÒËùʾ£¬ÓÃÒ»¸ùÓë¾øÈÈ»îÈûÏàÁ¬µÄϸÏß½«¾øÈÈÆø¸×Ðü¹ÒÔÚijһ¸ß¶È¾²Ö¹²»¶¯£¬Æø¸×¿ª¿ÚÏòÉÏ£¬ÄÚ·â±ÕÒ»¶¨ÖÊÁ¿µÄÆøÌ壨·Ö×Ó¼äµÄÏ໥×÷ÓÃÁ¦ºöÂÔ²»¼Æ£©£¬¸×ÄÚ»îÈû¿ÉÒÔÎÞĦ²ÁÒƶ¯ÇÒ²»Â©Æø£¬ÏÖ½«Ï¸Ïß¼ô¶Ï£¬ÈÃÆø¸××ÔÓÉÏÂÂ䣬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ______
A£®ÆøÌåѹǿ¼õС£¬ÆøÌå¶ÔÍâ½ç×ö¹¦
B£®ÆøÌåѹǿÔö´ó£¬Íâ½ç¶ÔÆøÌå×ö¹¦
C£®ÆøÌåÌå»ýÔö´ó£¬ÆøÌåÄÚÄܼõС
D£®ÆøÌåÌå»ý¼õС£¬ÆøÌåÄÚÄÜÔö´ó
£¨3£©Èçͼ¼×Ëùʾ£¬Ò»Ô²ÖùÐξøÈÈÆø¸×ÊúÖ±·ÅÖã¬Í¨¹ý¾øÈÈ»îÈû·â±Õ×ÅÒ»¶¨ÖÊÁ¿µÄÀíÏëÆøÌ壮»îÈûµÄÖÊÁ¿Îªm£¬ºá½ØÃæ»ýΪS£¬´Ëʱ»îÈû´¦ÓÚƽºâ״̬£¬ÆøÌåµÄζÈΪT1£®ÏÖͨ¹ýµçÈÈË¿»ºÂý¼ÓÈÈÆøÌ壬ÔÚÆøÌåÎüÊÕÈÈÁ¿ÎªQµÄ¹ý³ÌÖУ¬ÆøÌå¶Ô»îÈû×ö¹¦µÄ´óСΪW£®ÒÑÖª´óÆøѹǿΪp0£¬ÖØÁ¦¼ÓËÙ¶ÈΪg£¬²»¼Æ»îÈûÓëÆø¸×µÄĦ²Á£®Çó£º
¢ÙÆøÌåµÄѹǿ£»
¢Ú¼ÓÈȹý³ÌÖÐÆøÌåµÄÄÚÄÜÔö¼ÓÁ¿£»
B£®£¨Ñ¡ÐÞÄ£¿é3-4£©
£¨1£©ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ______£®
A£®¼¤¹â±ÈÆÕͨ¹âÔ´µÄÏà¸ÉÐÔºÃ
B£®×ÏÍâÏßÔÚË®ÖеĴ«²¥ËٶȴóÓÚºìÍâÏßÔÚË®ÖеĴ«²¥ËÙ¶È
C£®ÔÚ¹âµÄÑÜÉäʵÑéÖУ¬³öÏÖÃ÷ÌõÎƵĵط½¹â×Óµ½´ïµÄ¸ÅÂʽϴó
D£®½ÓÊÕµç´Å²¨Ê±Ê×ÏÈÒª½øÐе÷Ƶ
£¨2£©Ò»ÁÐÑØxÖáÕý·½Ïò´«²¥µÄ¼òгºá²¨£¬t=0ʱ¿ÌµÄ²¨ÐÎÈçͼÖÐʵÏßËùʾ£¬t=0.2sʱ¿ÌµÄ²¨ÐÎÈçͼ±ûÖÐÐéÏßËùʾ£¬Ôò£º
A£®ÖʵãPµÄÔ˶¯·½ÏòÏòÓÒ
B£®²¨µÄÖÜÆÚ¿ÉÄÜΪ0.27s
C£®²¨µÄ´«²¥ËٶȿÉÄÜΪ630m/s
D£®²¨µÄƵÂÊ¿ÉÄÜΪ1.25Hz
£¨3£©Èçͼ¶¡Ëùʾ£¬ABCΪ²£Á§ÈýÀâ¾µµÄºá½ØÃ棬¡ÏA=30¡ã£¬¡ÏB=60¡ã£¬BC=3cm£¬Ò»ÌõƽÐÐÓÚAC±ßµÄ¹âÏß´ÓOµã´¹Ö±ÉäÏòÀâ¾µ£¬OC=2cm£¬ÒÑÖªÀâ¾µ¶Ô¹âµÄÕÛÉäÂÊΪn=1.5£¬ÊÔÇó¹âÏßÔÚÀâ¾µÄÚ´«²¥µÄ×î¶Ìʱ¼äÊǶàÉÙ£¿
C£® £¨Ñ¡ÐÞÄ£¿é3-5£©
£¨1£©Õýµç×Ó£¨PET£©·¢Éä¼ÆËã»ú¶Ï²ãÏÔÏñµÄ»ù±¾Ô­ÀíÊÇ£º½«·ÅÉäÐÔͬλËØ
 158
O
×¢ÈëÈËÌ壬²ÎÓëÈËÌåµÄ´úл¹ý³Ì£®
 158
O
ÔÚÈËÌåÄÚË¥±ä·Å³öÕýµç×Ó£¬ÓëÈËÌåÄÚ¸ºµç×ÓÏàÓö¶øäÎÃðת»¯ÎªÒ»¶Ô¹â×Ó£¬±»Ì½²âÆ÷̽²âµ½£¬¾­¼ÆËã»ú´¦Àíºó²úÉúÇåÎúµÄͼÏ󣮸ù¾ÝPETÔ­Àí£¬»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ùд³ö
 158
O
µÄË¥±äµÄ·½³Ìʽ______£®
¢Ú½«·ÅÉäÐÔͬλËØ
 158
O
×¢ÈëÈËÌ壬
 158
O
µÄÖ÷ÒªÓÃ;______
A£®ÀûÓÃËüµÄÉäÏß       B£®×÷Ϊʾ×ÙÔ­×Ó
C£®²ÎÓëÈËÌåµÄ´úл¹ý³Ì  D£®ÓÐÑõºôÎü
¢ÛPETÖÐËùÑ¡µÄ·ÅÉäÐÔͬλËصİëË¥ÆÚÓ¦______£®£¨Ìî¡°³¤¡±»ò¡°¶Ì¡±»ò¡°³¤¶Ì¾ù¿É¡±£©
£¨2£©Ò»Á¾Ð¡³µÔڹ⻬ˮƽÃæÉÏÒÔv1=1m/sµÄËÙ¶ÈÏòÓÒÔ˶¯£¬Ð¡³µµÄÖÊÁ¿ÎªM=100kg£¬Ò»ÖÊÁ¿Îªm=50kgµÄÈË´ÓС³µµÄÓÒ¶ËÓ­ÃæÌøÉÏС³µ£¬½Ó´¥Ð¡³µÇ°µÄ˲¼äÈ˵ÄˮƽËٶȴóСΪv2=5.6m/s£®ÇóÈËÌøÉÏС³µºó£¬È˺ÍС³µµÄ¹²Í¬ËٶȺÍÈËÌøÉÏС³µµÄ¹ý³ÌÖÐÈ˶ÔС³µ×öµÄ¹¦£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸