ÓÉÓÚÍòÓÐÒýÁ¦¶¨ÂɺͿâÂض¨Âɶ¼Âú×ãƽ·½·´±ÈÂÉ£¬Òò´ËÒýÁ¦³¡Óëµç³¡Ö®¼äÓÐÐí¶àÏàËƵÄÐÔÖÊ£¬ÔÚ´¦ÀíÓйØÎÊÌâʱ¿ÉÒÔ½«ËüÃǽøÐÐÀà±È£®ÀýÈçµç³¡Öз´Ó³¸÷µãµç³¡Ç¿ÈõµÄÎïÀíÁ¿Êǵ糡ǿ¶È£¬Æ䶨ÒåʽΪE=
F
P
£®ÔÚÒýÁ¦³¡ÖпÉÒÔÓÐÒ»¸öÀàËƵÄÎïÀíÁ¿ÓÃÀ´·´Ó³¸÷µãÒýÁ¦³¡µÄÇ¿Èõ£®ÉèµØÇòµÄÖÊÁ¿ÎªM£¬°ë¾¶ÎªR£¬µØÇò±íÃæ´¦ÖØÁ¦¼ÓËÙ¶ÈΪg£¬ÒýÁ¦³£Á¿ÎªG£®Èç¹ûÒ»¸öÖÊÁ¿ÎªmµÄÎïÌåλÓÚ¾àµØÐÄ2R´¦µÄijµã£¬ÔòÏÂÁбí´ïʽÖÐÄÄЩÊÇÄܹ»·´Ó³¸ÃµãÒýÁ¦³¡Ç¿ÈõµÄÎïÌåÁ¿ÊÇ______[G
M
(2R)2
¡¢G
m
(2R)2
¡¢G
Mm
(2R)2
¡¢
g
4
]£®
µç³¡Ç¿¶ÈµÄ¶¨Òåʽ£ºE=
F
q
£¬ÆäÖеÄFÊÇ¿âÂØÁ¦£¬qÊÇÊÔ̽µçºÉ£®ÖØÁ¦³¡Ò²¿ÉÒÔÕâÑùÀ´¼ÆË㣺EÖØÁ¦=
FÒý
m
£¬
Èç¹ûÒ»¸öÖÊÁ¿ÎªmµÄÎïÌåλÓÚ¾àµØÐÄ2R´¦µÄijµã£¬Ôò£ºFÒý=
GMm
(2R)2
=
1
4
?
GMm
(2R)2
=
1
4
?mg
£¬EÖØÁ¦=
FÒý
m
=
GM
(2R)2
=
g
4

¹Ê´ð°¸Îª£ºG
M
(2R)2
£¬
g
4
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2012?ÉÇβģÄ⣩ÓÉÓÚÍòÓÐÒýÁ¦¶¨ÂɺͿâÂض¨Âɶ¼Âú×ãƽ·½·´±È¶¨ÂÉ£¬Òò´ËÒýÁ¦³¡ºÍµç³¡Ö®¼äÓÐÐí¶àÏàËƵÄÐÔÖÊ£¬ÔÚ´¦ÀíÓйØÎÊÌâʱ¿ÉÒÔ½«ËüÃǽøÐÐÀà±È£®ÀýÈçµç³¡Öз´Ó³¸÷µãµç³¡Ç¿ÈõµÄÎïÀíÁ¿Êǵ糡ǿ¶È£¬Æ䶨ÒåʽΪE=
F
q
£®ÔÚÒýÁ¦³¡ÖпÉÒÔÓÐÒ»¸öÀàËƵÄÎïÀíÁ¿ÓÃÀ´·´Ó³¸÷µãÒýÁ¦³¡µÄÇ¿Èõ£®ÉèµØÇòÖÊÁ¿ÎªM£¬°ë¾¶ÎªR£¬µØÇò±íÃæ´¦ÖØÁ¦¼ÓËÙ¶ÈΪg£¬ÒýÁ¦³£Á¿ÎªG£®Èç¹ûÒ»¸öÖÊÁ¿ÎªmµÄÎïÌåλÓÚ¾àµØÐÄ2R´¦µÄijµã£¬ÔòÏÂÁбí´ïʽÖÐÄÜ·´Ó³¸ÃµãÒýÁ¦³¡Ç¿ÈõµÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2012?ÑÓÇìÏØһģ£©ÓÉÓÚÍòÓÐÒýÁ¦¶¨ÂɺͿâÂض¨Âɶ¼Âú×㡰ƽ·½·´±È¶¨ÂÉ¡±£¬Òò´ËÒýÁ¦³¡ºÍµç³¡Ö®¼äÓÐÐí¶àÏàËƵÄÌØÐÔ£¬ÔÚ´¦ÀíÓйØÎÊÌâʱ¿ÉÒÔ½«ËûÃǽøÐÐÀà±È£¬ÀýÈçµç³¡Öз´Ó³¸÷µãµç³¡Ç¿ÈõµÄÎïÀíÁ¿Êǵ糡ǿ¶È£¬Æ䶨ÒåʽΪE=
E
q
£¬ÔÚÒýÁ¦³¡ÖпÉÒÔÓÐÒ»¸öÀàËƵÄÎïÀíÁ¿À´·´Ó³¸÷µãÒýÁ¦³¡µÄÇ¿Èõ£¬ÉèµØÇòµÄÖÊÁ¿ÎªM£¬°ë¾¶ÎªR£¬µØÇò±íÃæ´¦ÖØÁ¦¼ÓËÙ¶ÈΪg£¬ÒýÁ¦³£Á¿ÎªG£¬Èç¹ûÒ»¸öÖÊÁ¿ÎªmµÄÎïÌåλÓÚ¾àµØÐÄ2RµÄijµã£¬ÔòÏÂÁбí´ïʽÖÐÄÜ·´Ó³¸ÃµãÒýÁ¦³¡Ç¿ÈõµÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÓÉÓÚÍòÓÐÒýÁ¦¶¨ÂɺͿâÂض¨Âɶ¼Âú×ãƽ·½·´±ÈÂÉ£¬Òò´ËÁ¦³¡ºÍµç³¡Ö®¼äÓÐÐí¶àÏàËƵÄÐÔÖÊ£¬ÔÚ´¦ÀíÓйØÎÊÌâʱ¿ÉÒÔ½«ËüÃǽøÐÐÀà±È£®ÀýÈçµç³¡Öз´Ó³¸÷µãµç³¡Ç¿ÈõµÄÎïÀíÁ¿Êǵ糡ǿ¶È£¬Æ䶨ÒåʽΪE=
F
q
£®ÔÚÒýÁ¦³¡ÖпÉÒÔÓÃÒ»¸öÀàËƵÄÎïÀíÁ¿ÓÃÀ´·´Ó³¸÷µãÒýÁ¦³¡µÄÇ¿Èõ£®ÉèµØÇòÖÊÁ¿ÎªM£¬°ë¾¶ÎªR£¬µØÇò±íÃæ´¦ÖØÁ¦¼ÓËÙ¶ÈΪg£¬ÒýÁ¦³£Á¿ÎªG£®Èç¹ûÒ»¸öÖÊÁ¿Îªm£®µÄÎïÌåλÓÚ¾àµØÐÄ2r´¦µÄijµã£¬ÔòÏÂÁбí´ïʽÖÐÄÜ·´Ó³¸ÃµãÒýÁ¦³¡Ç¿ÈõµÄÊÇ£¨¡¡¡¡£©
A¡¢
g
4
B¡¢
Gm
(2r)2
C¡¢
GMm
(2r)2
D¡¢
GM
(2r)2

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÓÉÓÚÍòÓÐÒýÁ¦¶¨ÂɺͿâÂض¨Âɶ¼Âú×ãƽ·½·´±ÈÂÉ£¬Òò´ËÒýÁ¦³¡Óëµç³¡Ö®¼äÓÐÐí¶àÏàËƵÄÐÔÖÊ£¬ÔÚ´¦ÀíÓйØÎÊÌâʱ¿ÉÒÔ½«ËüÃǽøÐÐÀà±È£®ÀýÈçµç³¡Öз´Ó³¸÷µãµç³¡Ç¿ÈõµÄÎïÀíÁ¿Êǵ糡ǿ¶È£¬Æ䶨ÒåʽΪE=
F
P
£®ÔÚÒýÁ¦³¡ÖпÉÒÔÓÐÒ»¸öÀàËƵÄÎïÀíÁ¿ÓÃÀ´·´Ó³¸÷µãÒýÁ¦³¡µÄÇ¿Èõ£®ÉèµØÇòµÄÖÊÁ¿ÎªM£¬°ë¾¶ÎªR£¬µØÇò±íÃæ´¦ÖØÁ¦¼ÓËÙ¶ÈΪg£¬ÒýÁ¦³£Á¿ÎªG£®Èç¹ûÒ»¸öÖÊÁ¿ÎªmµÄÎïÌåλÓÚ¾àµØÐÄ2R´¦µÄijµã£¬ÔòÏÂÁбí´ïʽÖÐÄÄЩÊÇÄܹ»·´Ó³¸ÃµãÒýÁ¦³¡Ç¿ÈõµÄÎïÌåÁ¿ÊÇ
 
[G
M
(2R)2
¡¢G
m
(2R)2
¡¢G
Mm
(2R)2
¡¢
g
4
]£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÓÉÓÚÍòÓÐÒýÁ¦¶¨ÂɺͿâÂض¨Âɶ¼Âú×ãƽ·½·´±ÈÂÉ£¬ËùÒÔÁ¦³¡ºÍµç³¡Ö®¼äÓÐÐí¶àÏàËƵÄÐÔÖÊ£¬ÔÚ´¦ÀíÓйØÎÊÌâʱ¿ÉÒÔ½«ËüÃǽøÐÐÀà±È.ÀýÈçµç³¡Öз´Ó³¸÷µãµç³¡Ç¿ÈõµÄÎïÀíÁ¿Êǵ糡ǿ¶È£¬Æ䶨ÒåʽΪE=,ÔÚÒýÁ¦³¡ÖпÉÒÔÓÃÒ»¸öÀàËƵÄÎïÀíÁ¿À´·´Ó³¸÷µãÒýÁ¦³¡µÄÇ¿Èõ.ÉèµØÇòÖÊÁ¿ÎªM£¬°ë¾¶ÎªR£¬µØÇò±íÃæ´¦ÖØÁ¦¼ÓËÙ¶ÈΪg,ÒýÁ¦³£Á¿ÎªG.Èç¹ûÒ»¸öÖÊÁ¿ÎªmµÄÎïÌåλÓÚ¾àµØÐÄ2R´¦µÄijµã£¬ÔòÏÂÁбí´ïʽÖÐÄÜ·´Ó³¸ÃµãÒýÁ¦Ç¿ÈõµÄÊÇ£¨    £©

A.G                               B.G

C.G                               D.

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸