| A£® | ºãÐÇS1µÄÖÊÁ¿´óÓÚºãÐÇS2µÄÖÊÁ¿ | |
| B£® | ºãÐÇS1±íÃæµÄÖØÁ¦¼ÓËÙ¶ÈСÓÚºãÐÇS2±íÃæµÄÖØÁ¦¼ÓËÙ¶È | |
| C£® | ºãÐÇS1µÄµÚÒ»ÓîÖæËÙ¶ÈСÓÚºãÐÇS2µÄµÚÒ»ÓîÖæËÙ¶È | |
| D£® | ¾àÁ½ºãÐDZíÃæ¸ß¶ÈÏàͬµÄÐÐÐÇ£¬S1µÄÐÐÐÇÏòÐļÓËٶȽϴó |
·ÖÎö ¸ù¾ÝÍòÓÐÒýÁ¦ÌṩÏòÐÄÁ¦£¬µÃ³öÎÀÐǵÄÖÜÆÚÓëºãÐǵÄÖÊÁ¿¡¢°ë¾¶Ö®¼äµÄ¹ØÏµ£¬È»ºó½øÐбȽϣ»
½áºÏÍòÓÐÒýÁ¦ÌṩÏòÐÄÁ¦£¬·Ö±ðд³öµÚÒ»ÓîÖæËٶȵıí´ïʽ£¬È»ºó±È½ÏËüÃǵĴóС¹ØÏµ£»
½â´ð ½â£ºÐÐÐÇmÎ§ÈÆºãÐÇM×öÔÈËÙÔ²ÖÜÔ˶¯£¬ÍòÓÐÒýÁ¦ÌṩÏòÐÄÁ¦£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂɵÃ
$G\frac{Mm}{{r}_{\;}^{2}}=m\frac{4{¦Ð}_{\;}^{2}}{{T}_{\;}^{2}}r$
µÃ${T}_{\;}^{2}=\frac{4{¦Ð}_{\;}^{2}}{GM}{r}_{\;}^{3}$
${T}_{\;}^{2}-{r}_{\;}^{3}$ͼÏßÊǹýÔµãµÄÇãбµÄÖ±Ïߣ¬Ð±ÂÊ$k=\frac{4{¦Ð}_{\;}^{2}}{GM}$
A¡¢${S}_{1}^{\;}$ͼÏßбÂʴ󣬹ʺãÐÇ${S}_{1}^{\;}$ÖÊÁ¿Ð¡£¬¹ÊA´íÎó£»
B¡¢¸ù¾ÝºãÐDZíÃæÎïÌåÖØÁ¦µÈÓÚÍòÓÐÒýÁ¦$mg=G\frac{Mm}{{R}_{\;}^{2}}$
µÃ$g=G\frac{M}{{R}_{\;}^{2}}$
Á½ºãÐǰ뾶ÏàµÈ£¬ºãÐÇ${S}_{1}^{\;}$ÖÊÁ¿Ð¡£¬¹ÊºãÐÇ${S}_{1}^{\;}$±íÃæµÄÖØÁ¦¼ÓËٶȽÏС£¬¹ÊBÕýÈ·£®
C¡¢¸ù¾ÝµÚÒ»ÓîÖæËٶȹ«Ê½$v=\sqrt{\frac{GM}{R}}$
Á½ºãÐǰ뾶ÏàµÈ£¬ºãÐÇ${S}_{1}^{\;}$µÄÖÊÁ¿Ð¡£¬ËùÒÔºãÐÇ${S}_{1}^{\;}$µÄµÚÒ»ÓîÖæËٶȽÏС£¬¹ÊCÕýÈ·£®
D¡¢¾àÁ½ºãÐDZíÃæ¸ß¶ÈÏàͬµÄÐÐÐÇ£¬¹ìµÀ°ë¾¶Ïàͬ£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂÉ£¬ÓÐ
$G\frac{Mm}{{r}_{\;}^{2}}=ma$
µÃ$a=\frac{GM}{{r}_{\;}^{2}}$
¹ìµÀ°ë¾¶Ïàͬ£¬ºãÐÇ${S}_{1}^{\;}$µÄÖÊÁ¿Ð¡£¬¹Ê${S}_{1}^{\;}$µÄÏòÐļÓËٶȽÏС£¬¹ÊD´íÎó£®
¹ÊÑ¡£ºBC
µãÆÀ ¸ÃÌ⿼²éÍòÓÐÒýÁ¦¶¨ÂɵÄÓ¦Óã¬ÓÉÓÚÁ½¸öºãÐǵİ뾶¾ùΪ${R}_{0}^{\;}$£¬ÓÖ¿ÉÒÔ¸ù¾ÝͼÏ󣬽áºÏÍòÓÐÒýÁ¦¶¨ÂɱȽϰ뾶ºÍÖÜÆÚÖ®¼äµÄ¹ØÏµ£®µ±È»Ò²¿ÉÒÔ½áºÏ¿ªÆÕÀÕµÚÈý¶¨ÂÉ·ÖÎö°ë¾¶ÓëÖÜÆÚÖ®¼äµÄ¹ØÏµ£®
| Äê¼¶ | ¸ßÖÐ¿Î³Ì | Äê¼¶ | ³õÖÐ¿Î³Ì |
| ¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍÆ¼ö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍÆ¼ö£¡ |
| ¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍÆ¼ö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍÆ¼ö£¡ |
| ¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍÆ¼ö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍÆ¼ö£¡ |
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
| A£® | ¡°µÑÒôÀס±ÔÚt2ʱ¿ÌÉÏÉýÖÁ×î¸ßµã | |
| B£® | t3¡«t4ʱ¼äÄÚ¡°µÑÒôÀס±×ö×ÔÓÉÂäÌåÔ˶¯ | |
| C£® | 0¡«t3ʱ¼äÄÚ¡°µÑÒôÀס±µÄƽ¾ùËÙ¶È¿ÉÄÜΪ$\frac{{v}_{3}}{2}$ | |
| D£® | ÈôÁíÒ»¿Å¡°µÑÒôÀס±½ô°¤×Åt0¡äʱ¿ÌÆð·É£¬ÆäºóµÄÔ˶¯Çé¿öÓët0ʱ¿ÌÆð·ÉµÄ¡°µÑÒôÀס±Ò»Ñù£¬ÔòÁ½ÕßÖ®¼äÏÈÔ½À´Ô½½ü¡¢ºóÓÖÔ½À´Ô½Ô¶ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
| A£® | AµãµÄ³¡Ç¿Ð¡ÓÚBµãµÄ³¡Ç¿ | |
| B£® | AµãµÄµçÊÆµÍÓÚBµãµÄµçÊÆ | |
| C£® | Ò»´øµçÁ£×Ó·Ö±ð´ÓCÒÆµ½DºÍ´ÓEÒÆµ½F£¬µç³¡Á¦×ö¹¦ÏàµÈ | |
| D£® | ´øÕýµçÁ£×Ó´ÓPµãÑØÆ½ÐÐÓÚ¼«°å·½ÏòÉäÈ룬Ëü½«×öÀàÆ½Å×Ô˶¯ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
| A£® | ÔÚ¹øºÍµç´Å¯Öмä·ÅÒ»Ö½°å£¬Ôòµç´Å¯²»ÄÜÆðµ½¼ÓÈÈ×÷Óà | |
| B£® | µç´Å¯ͨµçÏßȦ¼Ó½»Á÷µçºó£¬ÔÚ¹øµ×²úÉúÎÐÁ÷£¬½ø¶ø·¢Èȹ¤×÷ | |
| C£® | µç´Å¯µÄ¹ø²»ÄÜÓÃÌմɹø»òÄÍÈȲ£Á§¹ø£¬Ö÷ÒªÔÒòÊÇÕâЩ²ÄÁϵĵ¼ÈÈÐÔÄܽϲî | |
| D£® | µ±ºã¶¨µçÁ÷ͨ¹ýÏßȦʱ£¬»á²úÉúºã¶¨´Å³¡£¬ºã¶¨´Å³¡Ô½Ç¿£¬µç´Å¯¼ÓÈÈЧ¹ûÔ½ºÃ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
| A£® | 1£º2cos¦È | B£® | tan¦È£º1 | C£® | 2cos¦È£º1 | D£® | 1£º2sin¦È |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º¶àÑ¡Ìâ
| A£® | ÔÚt=$\frac{T}{2}$ʱ£¬½ðÊô°ôµÄËÙ¶È×î´ó | |
| B£® | ½ðÊô°ôÔÚ³õʼλÖø½½ü×öÍù·µÔ˶¯ | |
| C£® | ÔÚt=$\frac{T}{4}$ʱ£¬½ðÊô°ôÊܵ½µÄ°²ÅàÁ¦×î´óΪBmIL£¬·½ÏòÏò×ó | |
| D£® | ½ðÊô°ôÊܵ½µÄ°²ÅàÁ¦ÔÚÒ»¸öÖÜÆÚÄÚ×öµÄ×ܹ¦ÎªÁã |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ
| ÊÔÑé´Î”µ | 1 | 2 | 3 | 4 | 5 |
| ¹³Âë×ÜÖÊÁ¿£¨g£© | 0 | 30 | 60 | 90 | 120 |
| µ¯»É×ܳ¤¶È£¨cm£© | 6.00 | 7.11 | 8.20 | 9.31 | 10.40 |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÌî¿ÕÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¹ú¼ÊѧУÓÅÑ¡ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com