ÔÚ¡°Ì½¾¿ÇóºÏÁ¦µÄ·½·¨¡±ÊµÑéÖУ¬ÏÖÓÐľ°å¡¢°×Ö½¡¢Í¼¶¤¡¢ÏðƤ½î¡¢Ï¸ÉþÌ׺ÍÒ»°Ñµ¯»É³Ó¡¢

£¨1£©ÎªÍê³ÉʵÑ飬ijͬѧÁíÕÒÀ´Ò»¸ùµ¯»É£¬ÏȲâÁ¿Æä¾¢¶ÈϵÊý£¬µÃµ½µÄʵÑéÊý¾ÝÈçϱí

µ¯Á¦F(N)

0.50

1.00

1.50

2.00

2.50

3.00

3.50

É쳤Á¿x(10-2m)

0.74

1.80

2.80

3.72

4.60

5.58

6.42

ÓÃ×÷ͼ·¨ÇóµÃ¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýk =_________________N/m£»

£¨2£©Ä³´ÎʵÑéÖУ¬µ¯»ÉµÄÖ¸ÕëλÖÃÈçͼËùʾ£¬Æä¶ÁÊýΪ_____________N£¬Í¬Ê±ÀûÓã¨3£©Öнá¹û»ñµÃµ¯»ÉÉϵĵ¯Á¦ÖµÎª2.50N£¬ÇëÔÚ´ðÌâÖ½ÉÏ»­³öÕâÁ½¸ö¹²µãÁ¦µÄºÏÁ¦FºÏ£»

£¨3£©ÓÉͼµÃµ½FºÏ=__________N¡£

¡¾´ð°¸¡¿£¨1£©54,£¨2£©2.10, £¨3£©3.3

¡¾¿¼µã¡¿¡°Ì½¾¿ÇóºÏÁ¦µÄ·½·¨¡±ÊµÑé

¡¾½âÎö¡¿£¨1£©¸ù¾ÝͼÏßбÂÊÇóµÃµ¯»ÉµÄ¾¢¶ÈϵÊýk=54N/m£»

£¨2£©¶ÁÊýʱ¹À¶Áһ룬F=2.10N£»

£¨3£©×÷ͼ£¬ÔÚͬһÁ¦µÄͼʾÖÐʹÓÃÏàͬµÄ±ÈÀý±ê³ß£¬×öƽÐÐËıßÐΣ¬Á¿³öÈçͼ¶Ô½ÇÏߵij¤¶È£¬¸ù¾Ý±ÈÀý±ê³ß»»Ëã³öºÏÁ¦£¬FºÏ=3.3N¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ¡°Ì½¾¿ÇóºÏÁ¦µÄ·½·¨¡±µÄʵÑéÖУ¬ÐèÒª½«ÏðƤÌõµÄÒ»¶Ë¹Ì¶¨ÔÚˮƽľ°åÉÏ£¬ÁíÒ»¶ËϵÉÏÁ½¸ùϸÉþ£¬Ï¸ÉþµÄÁíÒ»¶Ë¶¼ÓÐÉþÌ×£¨Èçͼ£©£®ÊµÑéÖÐÐèÓÃÁ½¸öµ¯»É³Ó·Ö±ð¹´×¡ÉþÌ×£¬²¢»¥³É½Ç¶ÈµØÀ­ÏðƤÌõ£¬Ê¹ÏðƤÌõÉ쳤£¬½áµãµ½´ïijһλÖÃO£®
£¨1£©Ä³Í¬Ñ§ÔÚ×ö¸ÃʵÑéʱÈÏΪ£º
A£®À­ÏðƤÌõµÄÉþϸһЩÇÒ³¤Ò»Ð©£¬ÊµÑéЧ¹û½ÏºÃ
B£®À­ÏðƤÌõʱ£¬µ¯»É³Ó¡¢ÏðƤÌõ¡¢Ï¸ÉþÓ¦Ìù½üľ°åÇÒÓëľ°åƽÃæƽÐÐ
C£®ÏðƤÌõµ¯ÐÔÒªºÃ£¬À­½áµãµ½´ïijһλÖÃOʱ£¬À­Á¦ÒªÊʵ±´óЩ
D£®À­Á¦F1ºÍF2µÄ¼Ð½ÇÔ½´óÔ½ºÃ
ÆäÖÐÕýÈ·µÄÊÇ
ABC
ABC
£¨ÌîÈëÏàÓ¦µÄ×Öĸ£©£®
£¨2£©ÈôÁ½¸öµ¯»É³ÓµÄ¶ÁÊý¾ùΪ4N£¬ÇÒÁ½µ¯»É³ÓÀ­Á¦µÄ¼Ð½ÇΪÈñ½Ç£¬Ôò
²»ÄÜ
²»ÄÜ
£¨Ñ¡Ìî¡°ÄÜ¡±»ò¡°²»ÄÜ¡±£©ÓÃÒ»¸öÁ¿³ÌΪ5NµÄµ¯»É³Ó²âÁ¿³öËüÃǵĺÏÁ¦£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ̽¾¿ÇóºÏÁ¦µÄ·½·¨Ê±£¬ÏȽ«ÏðƤÌõµÄÒ»¶Ë¹Ì¶¨ÔÚˮƽľ°åÉÏ£¬ÁíÒ»¶ËϵÉÏ´øÓÐÉþÌ×µÄÁ½¸ùϸÉþ£®ÊµÑéʱ£¬ÐèÒªÁ½´ÎÀ­ÉìÏðƤÌõ£¬Ò»´ÎÊÇͨ¹ýÁ½Ï¸ÉþÓÃÁ½¸öµ¯»É³Ó»¥³É½Ç¶ÈµÄÀ­ÏðƤÌõ£¬ÁíÒ»´ÎÊÇÓÃÒ»¸öµ¯»É³Óͨ¹ýϸÉþÀ­ÏðƤÌõ£®Í¬Ñ§ÃÇÔÚ²Ù×÷¹ý³ÌÖÐÓÐÈçÏÂÒéÂÛ£¬ÆäÖжԼõСʵÑéÎó²îÓÐÒæµÄ×ö·¨ÊÇ £¨¡¡¡¡£©£¨Ë«ÏîÑ¡Ôñ£©
íÀÂëÖÊÁ¿m¡Á10-3 kg 0 30 60 90 120 150
µ¯»É×ܳ¤¶Èl¡Á10-2 m 6.0 7.2 8.3 9.5 10.6 11.8

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ¡°Ì½¾¿ÇóºÏÁ¦µÄ·½·¨¡±µÄʵÑéÖУ¬ÏðƤÌõµÄÒ»¶Ë¹Ì¶¨ÔÚPµã£¬ÁíÒ»¶Ë¸úÁ½¸ùϸÏßÌ×ÏàÁ¬£¬ÓÃA¡¢BÁ½¸öµ¯»É³Óͨ¹ýÁ½¸ùϸÏßÌ×À­ÏðƤÌõµÄ½áµãµ½´ïλÖÃOµã£¬ÈçͼËùʾ£®A£¬BÁ½¸öµ¯»É³ÓÀ­Ï¸ÏßÌ׵ķ½Ïò¸úPOÑÓ³¤Ï߳ɦÁºÍ¦Â½Ç£¬ÇÒ¦Á+¦Â=90¡ã£¬µ±¦Á½ÇÓÉͼʾλÖüõСʱ£¬Óûʹ½áµãOµÄλÖú͵¯»É³ÓAµÄʾÊý²»±ä£¬Ôò¿ÉÐеİ취ÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2011?¹ã¶«Ä£Ä⣩ÔÚ¡°Ì½¾¿ÇóºÏÁ¦µÄ·½·¨¡±µÄʵÑéÖУ¬ÐèÒª½«ÏðƤÌõµÄÒ»¶Ë¹Ì¶¨ÔÚˮƽľ°åÉÏ£¬ÁíÒ»¶ËϵÉÏÁ½¸ùϸÉþ£¬Ï¸ÉþµÄÁíÒ»¶Ë¶¼ÓÐÉþÌ×£¨Èçͼ£©£®ÊµÑéÖÐÐèÓÃÁ½¸öµ¯»É³Ó·Ö±ð¹´×¡ÉþÌ×£¬²¢»¥³É½Ç¶ÈµØÀ­ÏðƤÌõ£¬Ê¹ÏðƤÌõÉ쳤£¬½áµãµ½´ïijһλÖÃO£®
£¨1£©Ä³Í¬Ñ§ÔÚ×ö¸ÃʵÑéʱÈÏΪ£º
A£®À­ÏðƤÌõµÄϸÉþÓ¦¸Ã³¤Ò»Ð©£¬ÊµÑéЧ¹û½ÏºÃ
B£®À­ÏðƤÌõʱ£¬µ¯»É³Ó¡¢ÏðƤÌõ¡¢Ï¸ÉþÓ¦Ìù½üľ°åÇÒÓëľ°åƽÃæƽÐÐ
C£®ÏðƤÌõµ¯ÐÔÒªºÃ£¬À­½áµãµ½´ïijһλÖÃOʱ£¬À­Á¦ÒªÊʵ±´óЩ
D£®µ¯»É³ÓµÄʾÊýÒªÏȽøÐÐУ׼µ÷Áã
ÆäÖÐÕýÈ·µÄÊÇ
ABCD
ABCD
£¨ÌîÈëÏàÓ¦µÄ×Öĸ£©£®
£¨2£©ÈôÁ½¸öµ¯»É³ÓµÄ¶ÁÊý¾ùΪ4N£¬ÇÒÁ½µ¯»É³ÓÀ­Á¦µÄ·½ÏòÏ໥´¹Ö±£¬Ôò
²»ÄÜ
²»ÄÜ
£¨Ñ¡Ìî¡°ÄÜ¡±»ò¡°²»ÄÜ¡±£©ÓÃÒ»¸öÁ¿³ÌΪ5NµÄµ¯»É³Ó²âÁ¿³öËüÃǵĺÏÁ¦£¬ÀíÓÉÊÇ
ÒòΪÕâÁ½¸öÁ¦µÄºÏÁ¦´óС³¬³öÁ˵¯»É³ÓµÄÁ¿³Ì
ÒòΪÕâÁ½¸öÁ¦µÄºÏÁ¦´óС³¬³öÁ˵¯»É³ÓµÄÁ¿³Ì
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ¡°Ì½¾¿ÇóºÏÁ¦µÄ·½·¨¡±µÄʵÑéÖУ¬ÐèÒª½«ÏðƤÌõµÄÒ»¶Ë¹Ì¶¨ÔÚˮƽľ°åÉÏ£¬ÁíÒ»¶ËϵÉÏϸÉþÌ×£®ÊµÑéÖÐÐèÓÃÁ½¸öµ¯»É²âÁ¦¼Æ·Ö±ð¹´×¡Ï¸ÉþÌ×£¬»¥³É½Ç¶ÈµÄÀ­ÏðƤÌõ£¬Ê¹ÏðƤÌõÓëϸÉþµÄ½áµãÀ­µ½ÓëÒ»¸öÁ¦×÷ÓÃʱµÄͬһλÖÃO£¬Ä³Í¬Ñ§ÔÚ×ö¸ÃʵÑéʱÈÏΪ£º
A£®À­ÏðƤÌõµÄϸÉþϸһЩÇÒ³¤Ò»Ð©£¬ÊµÑéЧ¹ûºÃ
B£®À­ÏðƤÌõʱ£¬µ¯»É²âÁ¦¼Æ¡¢ÏðƤÌõ¡¢Ï¸ÉþÓ¦Ìù½üľ°åÇÒÓëľ°åƽÐÐ
C£®À­Á¦F1ºÍF2µÄ¼Ð½ÇÔ½´óÔ½ºÃ
D£®ÊµÑéÖÐÏðƤÌõÒ²¿ÉÒÔÓò»¿ÉÉ쳤µÄϸÉþÌæ´ú£¬Ö»ÒªÒ»¸öÁ¦×÷ÓúÍÁ½¸öÁ¦×÷ÓÃʱÀ­½áµãµ½´ïͬһλÖÃO£¬¾Í¿ÉÒÔ´ïµ½µÈЧµÄÄ¿µÄ
ÆäÖÐÕýÈ·µÄÊÇ£º
AB
AB
£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸