Èçͼ¼×Ëùʾ£¬Í¼µÄÓÒ²àMNΪһÊúÖ±·ÅÖõÄÓ«¹âÆÁ£¬OΪËüµÄÖе㣬OO¡äÓëÓ«¹âÆÁ´¹Ö±£¬ÇÒ³¤¶ÈΪl¡£ÔÚMNµÄ×ó²à¿Õ¼äÄÚ´æÔÚ×Å·½ÏòˮƽÏòÀïµÄÔÈÇ¿µç³¡£¬³¡Ç¿´óСΪE¡£ÒÒͼÊÇ´Ó¼×ͼµÄ×ó±ßÈ¥¿´Ó«¹âÆÁµÃµ½µÄƽÃæͼ£¬ÔÚÓ«¹âÆÁÉÏÒÔOΪԭµã½¨Á¢ÈçͼµÄÖ±½Ç×ø±êϵ¡£Ò»Ï¸ÊøÖÊÁ¿Îªm¡¢µçÁ¿ÎªqµÄ´øÕýµçµÄÁ£×ÓÒÔÏàͬµÄ³õËÙ¶Èv0´ÓO¡äµãÑØO¡äO·½ÏòÉäÈëµç³¡ÇøÓò¡£Á£×ÓµÄÖØÁ¦ºÍÁ£×Ó¼äµÄÏ໥×÷Óö¼¿ÉºöÂÔ²»¼Æ¡£

£¨1£©ÈôÔÙÔÚMN×ó²à¿Õ¼ä¼ÓÒ»¸öÔÈÇ¿´Å³¡£¬Ê¹µÃÓ«¹âÆÁÉϵÄÁÁµãÇ¡ºÃλÓÚÔ­µãO´¦£¬ÇóÕâ¸ö´Å³¡µÄ´Å¸ÐÇ¿¶ÈµÄ´óСºÍ·½Ïò¡£

£¨2£©Èç¹û´Å¸ÐÇ¿¶ÈµÄ´óС±£³Ö²»±ä£¬µ«°Ñ·½Ïò±äΪÓëµç³¡·½ÏòÏàͬ£¬ÔòÓ«¹âÆÁÉϵÄÁÁµãλÓÚͼÖÐAµã´¦£¬ÒÑÖªAµãµÄ×Ý×ø±ê , ÇóËüµÄºá×ø±êµÄÊýÖµ¡£

£¨1£©Óɵ糡Á¦ÒÔ¼°×óÊÖ¶¨ÔòÅж¨´Å³¡·½ÏòÊúÖ±ÏòÉÏ¡£                 ¢Ú

ÓÉ                    qE=qv0B     

µÃ´Å¸ÐÇ¿¶È´óСΪ     B=E / v0                                               ¢Ú

 £¨2£©ÒÔOO¡¯·½ÏòΪzÖáÕý·½Ïò£¬Óëx¡¢y×é³É¿Õ¼äÖ±½Ç×ø±êϵ¡£´Å³¡¸Ä±ä·½Ïòºó£¬Á£×ÓÔÚyOzƽÃæÄÚµÄÔ˶¯ÊÇÔÈËÙÔ²ÖÜÔ˶¯£¬¹ì¼£ÈçͼËùʾ¡£ÉèÔ²°ë¾¶ÎªR£¬¸ù¾Ý¼¸ºÎ¹ØϵÓÐ

                                      ¢Ú

ÓÉÓÚ, ¿É½â³ö£¬¿ÉÖª        ¢Ú

       Á£×ÓÑØx·½ÏòµÄ·ÖÔ˶¯ÊdzõËÙΪÁãµÄÔȼÓËÙÖ±ÏßÔ˶¯£¬Ê±¼ä

                                           ¢Û

               ¢Û

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ʾ²¨Æ÷ÊÇÒ»Öֶ๦ÄܽÌѧÒÇÆ÷£¬¿ÉÒÔÔÚÓ«¹âÆÁÉÏÏÔʾ³ö±»¼ì²âµÄµçѹ²¨ÐΣ®ËüµÄ¹¤×÷Ô­ÀíµÈЧ³ÉÏÂÁÐÇé¿ö£ºÈçͼ¼×Ëùʾ£¬Õæ¿ÕÊÒÖе缫K·¢³öµç×Ó£¨³õËÙ²»¼Æ£©£¬¾­¹ýµçѹΪU1µÄ¼ÓËٵ糡ºó£¬ÓÉС¿×SÑØˮƽ½ðÊô°åA£®B¼äµÄÖÐÐÄÏßÉäÈë°åÖУ®°å³¤L£¬Ïà¾àΪd£¬ÔÚÁ½°å¼ä¼ÓÉÏÈçͼÒÒËùʾµÄÕýÏÒ½»±äµçѹ£¬Ç°°ë¸öÖÜÆÚÄÚB°åµÄµçÊƸßÓÚA°åµÄµçÊÆ£¬µç³¡È«²¿¼¯ÖÐÔÚÁ½°åÖ®¼ä£¬ÇÒ·Ö²¼¾ùÔÈ£®ÔÚÿ¸öµç×Óͨ¹ý¼«°åµÄ¼«¶Ìʱ¼äÄÚ£¬µç³¡ÊÓ×÷ºã¶¨µÄ£®ÔÚÁ½¼«°åÓÒ²àÇÒÓ뼫°åÓÒ²àÏà¾àD´¦ÓÐÒ»¸öÓëÁ½°åÖÐÐÄÏß´¹Ö±µÄÓ«¹âÆÁ£¬ÖÐÐÄÏßÕýºÃÓëÆÁÉÏ×ø±êÔ­µãÏཻ£®µ±µÚÒ»¸öµç×Óµ½´ï×ø±êÔ­µãOʱ£¬Ê¹ÆÁÒÔËÙ¶ÈvÑØ-x·½ÏòÔ˶¯£¬Ã¿¾­¹ýÒ»¶¨µÄʱ¼äºó£¬ÔÚÒ»¸ö¼«¶Ìʱ¼äÄÚËüÓÖÌø»Ø³õʼλÖ㨿ɺöÂÔ²»¼Æ£©£¬È»ºóÖØÐÂ×öͬÑùµÄÔÈËÙÔ˶¯£®ÒÑÖªµç×ÓµÄÖÊÁ¿Îªm£¬µçºÉÁ¿e£¬²»¼Æµç×ÓµÄÖØÁ¦£¬Çó£º
£¨1£©µç×Ó½øÈëAB°åʱµÄ³õËٶȣ®
£¨2£©ÒªÊ¹ËùÓеĵç×Ó¶¼ÄÜ´òÔÚÓ«¹âÆÁÉÏ£¬Í¼ÒÒÖеçѹµÄ×î´óÖµU0ÐèÂú×ãʲôÌõ¼þ£¿
£¨3£©ÒªÊ¹Ó«¹âÆÁÉÏʼÖÕÏÔʾһ¸öÍêÕûµÄ²¨ÐΣ¬Ó«¹âÆÁ±ØÐëÿ¸ô¶à³¤Ê±¼ä»Øµ½³õʼλÖ㿼ÆËãÕâ¸ö²¨ÐεķåÖµºÍ³¤¶È£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ¼×Ëùʾ£¬Á½Æ½ÐнðÊô°åµÄ°å³¤l=0.20m£¬°å¼ä¾àd=6.0¡Á10-2m£¬ÔÚ½ðÊô°åÓÒ²àÓÐÒ»·¶Î§×ã¹»´óµÄ·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÀïµÄÔÈÇ¿´Å³¡£¬Æä±ß½çΪMN£¬Óë½ðÊô°å´¹Ö±£®½ðÊô°åµÄϼ«°å½ÓµØ£¬Éϼ«°åµÄµçѹuËæʱ¼ä±ä»¯µÄͼÏßÈçͼÒÒËùʾ£¬ÔÈÇ¿´Å³¡µÄ´Å¸ÐӦǿ¶ÈB=1.0¡Á10-2T£®ÏÖÓдøÕýµçµÄÁ£×ÓÒÔv0=5.0¡Á105m/sµÄËÙ¶ÈÑØÁ½°å¼äµÄÖÐÏßOO¡äÁ¬Ðø½øÈëµç³¡£¬¾­µç³¡ºóÉäÈë´Å³¡£®ÒÑÖª´øµçÁ£×ӵıȺÉ
q
m
=108C/kg£¬Á£×ÓµÄÖØÁ¦ºöÂÔ²»¼Æ£¬¼ÙÉèÔÚÁ£×Óͨ¹ýµç³¡ÇøÓòµÄ¼«¶Ìʱ¼äÄÚ¼«°å¼äµÄµçѹ¿ÉÒÔ¿´×÷²»±ä£¬²»¼ÆÁ£×Ó¼äµÄ×÷Ó㨼ÆËãÖÐÈ¡
4
15
=tan15¡ã
£©£®
¾«Ó¢¼Ò½ÌÍø
£¨1£©Çót=0ʱ¿Ì½øÈëµÄÁ£×Ó£¬¾­±ß½çMNÉäÈë´Å³¡ºÍÉä³ö´Å³¡Ê±Á½µã¼äµÄ¾àÀ룻
£¨2£©Çót=0.30sʱ¿Ì½øÈëµÄÁ£×Ó£¬Ôڴų¡ÖÐÔ˶¯µÄʱ¼ä£»
£¨3£©ÊÔÖ¤Ã÷£ºÔÚÒÔÉÏ×°Öò»±äʱ£¬ÒÔv0ÉäÈëµç³¡±ÈºÉÏàͬµÄ´øµçÁ£×Ó£¬¾­±ß½çMNÉäÈë´Å³¡ºÍÉä³ö´Å³¡Ê±Á½µã¼äµÄ¾àÀ붼ÏàµÈ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼ¼×Ëùʾ£¬ÊúÖ±·ÅÖõĽðÊô°åA¡¢BÖм俪ÓÐС¿×£¬Ð¡¿×µÄÁ¬ÏßÑØˮƽ·ÅÖõĽðÊô°åC¡¢DµÄÖÐÖáÏߣ¬Á£×ÓÔ´P¿ÉÒÔÁ¬ÐøµØ²úÉúÖÊÁ¿Îªm¡¢µçºÉÁ¿ÎªqµÄ´øÕýµçÁ£×Ó£¨³õËÙ²»¼Æ£©£¬Á£×ÓÔÚA¡¢B¼ä±»¼ÓËÙºó£¬ÔÙ½øÈë½ðÊô°åC¡¢D¼äƫת²¢¾ùÄܴӴ˵糡ÖÐÉä³ö£®ÒÑÖª½ðÊô°åA¡¢B¼äµÄµçѹUAB=U0£¬½ðÊô°åC¡¢D³¤¶ÈΪL£¬¼ä¾àd=
3
L
3
£®Á½°åÖ®¼äµÄµçѹUCDËæʱ¼ät±ä»¯µÄͼÏóÈçͼÒÒËùʾ£®ÔÚ½ðÊô°åC¡¢DÓÒ²àÓÐÒ»¸ö´¹Ö±Ö½ÃæÏòÀïµÄÔÈÇ¿´Å³¡·Ö²¼ÔÚͼʾµÄ°ë»·ÐδøÖУ¬¸Ã»·ÐδøµÄÄÚ¡¢ÍâÔ²ÐÄÓë½ðÊô°åC¡¢DµÄÖÐÐÄOµãÖغϣ¬ÄÚÔ²°ë¾¶Rl=
3
L
3
£®´Å¸ÐӦǿ¶ÈB0=
24mU0
qL2
£®ÒÑÖªÁ£×ÓÔÚƫתµç³¡ÖÐÔ˶¯µÄʱ¼äԶСÓڵ糡±ä»¯µÄÖÜÆÚ£¨µç³¡±ä»¯µÄÖÜÆÚTδ֪£©£¬Á£×ÓÖØÁ¦²»¼Æ£®
£¨1£©ÇóÁ£×ÓÀ뿪ƫתµç³¡Ê±£¬ÔÚ´¹Ö±ÓÚ°åÃæ·½ÏòÆ«ÒƵÄ×î´ó¾àÀ룻
£¨2£©ÈôËùÓÐÁ£×Ó¾ù²»ÄÜ´Ó»·Ðδų¡µÄÓҲഩ³ö£¬Çó»·Ðδø´Å³¡µÄ×îС¿í¶È£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â