±±¾©Ê±¼ä2011Äê11ÔÂ3ÈÕÁ賿1ʱ36·Ö£¬Öйú¡°Ì칬һºÅ¡±Ä¿±ê·ÉÐÐÆ÷Óë¡°ÉñÖ۰˺š±Ä¿±ê·ÉÐÐÆ÷ÔÚ¾àµØÇò343¹«ÀïµÄ¹ìµÀ£¬¾­ÀúÁ˲¶»ñ¡¢»º³å¡¢À­½ü¡¢Ëø½ôµÄ¹ý³Ì£¬×îÖÕʵÏÖÁ¬½Ó£¬ÐγÉ×éºÏÌ壮ÖйúÔØÈ˺½ÌìÊ״οռ佻»á¶Ô½ÓÈ¡µÃÔ²Âú³É¹¦£¬Îª½¨Éè¿Õ¼äÕ¾Âõ³ö¹Ø¼üÒ»²½£®·É´¬ÈÆÐÐËٶȴóÔ¼7800m/s£¬ºÏ
7.8
7.8
km/s£»¶Ô½Ó¹ý³ÌÖи÷ÖÖÐÅÏ¢ÊÇͨ¹ý
µç´Å²¨
µç´Å²¨
´«µÝµ½µØÇòÉÏÀ´µÄ£»¾Ý²âË㣬º½ÌìÔ±ÔÚ·µ»Ø²ÕʧÖØ״̬Ï·­Ò»¸ö¸úÍ·¶ÔµØ¾Í·ÉÐÐÁË351km£¬ÔòËûÍê³ÉÒ»¸ö¸ú¶·¶¯×÷ËùÐèÒªµÄʱ¼äÔ¼
45
45
s£®
·ÖÎö£º£¨1£©¶Ô¸´ºÏµ¥Î»µÄ»»Ë㣬¿ÉÒÔ·Ö×Ó¡¢·Öĸ·Ö±ð»»Ë㣻
£¨2£©µç´Å²¨¿ÉÒÔ´«µÝÐÅÏ¢£¬²¢ÇÒÄܹ»ÔÚÕæ¿ÕÖд«²¥£¬·É´¬ÔÚÌ«¿ÕÖÐÊÇͨ¹ýµç´Å²¨´«²¥ÐÅÏ¢µÄ£®
£¨3£©¸ù¾Ýt=
s
v
ÐèÒªµÄʱ¼ä£®
½â´ð£º½â£º£¨1£©7800m/s=
7800¡Á
1
1000
km
s
=7.8km/s£»
£¨2£©µç´Å²¨¿ÉÒÔ´«µÝÐÅÏ¢£¬²¢ÇÒÄܹ»ÔÚÕæ¿ÕÖд«²¥£¬ËùÒÔ¶Ô½Ó¹ý³ÌÖи÷ÖÖÐÅÏ¢ÊÇͨ¹ýµç´Å²¨´«µÝµ½µØÇòÉÏÀ´µÄ£®
£¨3£©¸ù¾Ýt=
s
v
µÃ£º
ÐèÒªµÄʱ¼ät=
s
v
=
351km
7.8km/s
=45s£®
¹Ê´ð°¸Îª£»7.8£»µç´Å²¨£»45£®
µãÆÀ£º±¾Ì⿼²éËٶȵĵ¥Î»»»ËãºÍËٶȹ«Ê½µÄÓ¦Óã¬ÖªµÀµç´Å²¨Äܹ»ÔÚÕæ¿ÕÖд«²¥£¬¿ÉÒÔ´«µÝÐÅÏ¢£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾµÄÊÇÎÒ¹ú×ÔÖ÷ÑÐÖƵġ°òÔÁúºÅ¡±ÔØÈËDZˮÆ÷£®ËüÓÚ±±¾©Ê±¼ä2011Äê8ÔÂ1ÈÕÁ賿3µã28·Ö¿ªÊ¼µÚÎå´ÎÏÂDZ£¬´Ë´ÎÏÂDZ×î´óÉî¶È5180m£¬Íê³ÉÁ˳Á»ýÎïÈ¡Ñù¡¢Î¢ÉúÎïÈ¡Ñù¡¢ÈÈҺȡÑùÆ÷ICL¹¦ÄܲâÊÔ¡¢±êÖ¾Îï²¼·ÅµÈ×÷ÒµÄÚÈÝ£¬½øÒ»²½ÑéÖ¤ÁËDZˮÆ÷ÔÚ´óÉî¶ÈÌõ¼þϵÄ×÷ÒµÐÔÄܼ°Îȶ¨ÐÔ£®£¨º£Ë®ÃܶȽüËÆÈ¡¦Ñ=1.0¡Ál03kg/m3£¬g=10N/Kg£©
£¨1£©ÒÑÖª¡°òÔÁúºÅ¡°ÏÂDZµ½5180mµÄº£µ×ÓÃʱԼ150min£¬Çó¡°òÔÁúºÅÒ»ÏÂDZʱµÄƽ¾ùËÙ¶ÈԼΪ¶àÉÙm/min£¿£¨½á¹û±£ÁôÕûÊý£©
£¨2£©µ±¡°òÔÁúºÅ¡±µ½´ï5180mÉîµÄº£µ×ÊÀ½çʱ£¬º£Ë®¶Ô¡°òÔÁúºÅ¡±Íâ¿ÇµÄѹǿԼΪ¶à´ó£¿Èç¹ûDZˮÆ÷µÄÒ»¸ö¹Û²â¿×µÄÃæ»ýԼΪ300cm2£¬Ôòº£Ë®¶Ô¸Ã¹Û²â¿×µÄѹÁ¦Ô¼Îª¶à´ó£¿
£¨3£©ÈôÕýÔÚË®ÏÂÔÈËÙÏÂDZµÄ¡°òÔÁúºÅ¡±Ç±Ë®Æ÷µÄ×ÜÖÊÁ¿Îª22t£¬ÇëÄãÓɴ˼ÆËãDZˮÆ÷µÄÌå»ýԼΪ¶à´ó£¿£®£¨²»¼Æº£Ë®×èÁ¦£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2012?»Æ¸ÔÄ£Ä⣩Èçͼ1ÊÇÎÒ¹úÊ×̨×ÔÖ÷Éè¼Æ¡¢×ÔÖ÷¼¯³ÉµÄ¡°òÔÁú¡±ºÅÔØÈËDZˮÆ÷£¬ÔÚ±±¾©Ê±¼ä2011Äê11ÔÂ26ÈÕ6ʱ12·ÖÊ×´ÎÏÂDZÖÁ5038.5Ã×£¬Ë³ÀûÍê³É±¾´Î5000Ã×¼¶º£ÊÔÈÎÎñ£¬Õâ±êÖ¾×ÅÖйúÒѳÉΪÊÀ½çÉÏÕÆÎÕ´óÉî¶ÈÔØÈËÉîDZ¼¼ÊõµÄ¹ú¼Ò£®

£¨1£©¡°òÔÁúºÅ¡±Ç±Ë®Æ÷µÄÌå»ýԼΪ21m3£¬µ±ËüÔÚˮϻºÂýµØÔÈËÙÏÂDZʱµÄ×ÜÖÊÁ¿¶à´ó£¿£¨²»¼ÆËãË®µÄ×èÁ¦£©
£¨2£©Íê³ÉÈÎÎñºó£¬ÓÃÈçͼ2µÄ»¬ÂÖ×飨»¬ÂÖÖز»¼Æ£©À´ÌáÆðDZˮÆ÷£®Èô³öË®ºóÀ­Á¦Ëæʱ¼äµÄ±ä»¯¹ØϵÈçͼ17¼×Ëùʾ£¬Ç±Ë®Æ÷µÄËٶȦԺÍÉÏÉýµÄ¸ß¶ÈhËæʱ¼ät±ä»¯µÄ¹ØϵͼÏó·Ö±ðÈçͼ3£¨±û£©ºÍ£¨¶¡£©Ëùʾ£®
Çó£º
¢ÙÔÚ1¡«2sÄÚ£¬À­Á¦FµÄ¹¦ÂÊP£®
¢ÚÔÚ0¡«1sÄÚ£¬À­Á¦F×öµÄ¹¦W£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨2012?ìø³ÇÇøÄ£Ä⣩ÔĶÁÏÂÃæ¶ÌÎÄ£¬²¢»Ø´ðÎÊÌ⣺
                              ÈÕ±¾¸£µºµÚÒ»ºËµçÕ¾Òý·¢ºËΣ»ú
    ±±¾©Ê±¼ä2011Äê3ÔÂ11ÈÕ13ʱ46·Ö£¬ÈÕ±¾±¾ÖݵºÏĘ́¸Û¸½½ü·¢ÉúÁË9.0¼¶µØÕ𣬵ØÕðÒý·¢µÄº£Ð¥Ôì³É¸£µºµÚÒ»ºËµçÕ¾ÀäȴϵͳʧÁ飬µÚ1¡¢2¡¢3¡¢4ºÅ·´Ó¦¶ÑÏà¼Ì·¢Éú±¬Õ¨£¬µ¼Ö·ÅÉäÐÔÎïÖÊй©£¬´Ó¶øÒý·¢ºËΣ»ú£®
     ºËµçÕ¾µÄºËÐÄÉ豸ÊǺ˷´Ó¦¶Ñ£¬ºË·´Ó¦¶ÑÊÇͨ¹ýÖغËÁѱäÊͷźËÄܵÄ×°Öã¬ÏÂͼÊǺ˵çÕ¾µÄÔ­Àíͼ£®ºË·´Ó¦¶ÑÖغËÁѱ䣬ÊͷųöºËÄÜ´«µÝ¸øË®£¬²úÉú¸ßθßѹÕôÆû£¬Íƶ¯ÕôÆûÂÖ»ú´ø¶¯·¢µç»ú·¢µç£®                         3ÔÂ11ÈÕ

»Ø´ðÎÊÌ⣺
£¨1£©ºË·´Ó¦¶ÑÊÇͨ¹ý¿É¿Ø
Áѱä
Áѱä
·´Ó¦ÊͷźËÄܵÄÉ豸£®
£¨2£©ºËµçÇå½à¡¢¾­¼Ã£¬µ«Ò»µ©·¢ÉúºËй©£¬»á¶Ô»·¾³Ôì³É¾Þ´óµÄÎÛȾ£®ºËÎÛȾµÄÖ÷ÒªÊÇÒòΪºËȼÁÏ»òºË·ÏÁϾßÓÐ
·ÅÉäÐÔ
·ÅÉäÐÔ
£®
£¨3£©¸ù¾ÝÉÏͼ£¬ÇëÔÚ·½¿òÄÚÍê³ÉºËµçÕ¾·¢µç¹ý³ÌÖÐÄÜÁ¿µÄת»¯Á÷³Ìͼ£º

£¨4£©×Ðϸ¹Û²ìºËµçÕ¾µÄÔ­Àíͼ£®ÔÚ·¢µç¹ý³ÌÖУ¬Ë®·¢ÉúµÄÎï̬±ä»¯ÓÐÆû»¯ºÍ
Òº»¯
Òº»¯
£®
ºËµçÕ¾ÔÚÔËÐйý³ÌÖÐÒª²úÉú¾Þ´óÈÈÁ¿£¬³£ÓÃË®À´ÀäÈ´£¬ÕâÊÇÒòΪˮ¾ßÓÐ
½Ï´óµÄ±ÈÈÈÈÝ
½Ï´óµÄ±ÈÈÈÈÝ
£¬ºËµçÕ¾Ò»°ã½¨ÔÚº£±ß£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2011-2012ѧÄê¹ã¶«Ê¡·ðɽÊÐìø³ÇÇøÖп¼4ÔÂÄ£Ä⿼ÊÔÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º¼ÆËãÌâ

ÔĶÁÏÂÃæ¶ÌÎÄ£¬²¢»Ø´ðÎÊÌ⣺

ÈÕ±¾¸£µºµÚÒ»ºËµçÕ¾Òý·¢ºËΣ»ú

±±¾©Ê±¼ä2011Äê3ÔÂ11ÈÕ13ʱ46·Ö£¬ÈÕ±¾±¾ÖݵºÏĘ́¸Û¸½½ü·¢ÉúÁË9.0¼¶µØÕ𣬵ØÕðÒý·¢µÄº£Ð¥Ôì³É¸£µºµÚÒ»ºËµçÕ¾ÀäȴϵͳʧÁ飬µÚ1¡¢2¡¢3¡¢4ºÅ·´Ó¦¶ÑÏà¼Ì·¢Éú±¬Õ¨£¬µ¼Ö·ÅÉäÐÔÎïÖÊй©£¬´Ó¶øÒý·¢ºËΣ»ú¡£

ºËµçÕ¾µÄºËÐÄÉ豸ÊǺ˷´Ó¦¶Ñ£¬ºË·´Ó¦¶ÑÊÇͨ¹ýÖغËÁѱäÊͷźËÄܵÄ×°Öã¬ÏÂͼÊǺ˵çÕ¾µÄÔ­Àíͼ¡£ºË·´Ó¦¶ÑÖغËÁѱ䣬ÊͷųöºËÄÜ´«µÝ¸øË®£¬²úÉú¸ßθßѹÕôÆû£¬Íƶ¯ÕôÆûÂÖ»ú´ø¶¯·¢µç»ú·¢µç¡£

»Ø´ðÎÊÌ⣺

£¨1£©ºË·´Ó¦¶ÑÊÇͨ¹ý¿É¿Ø         ·´Ó¦ÊͷźËÄܵÄÉ豸¡£

£¨2£©ºËµçÇå½à¡¢¾­¼Ã£¬µ«Ò»µ©·¢ÉúºËй©£¬»á¶Ô»·¾³Ôì³É¾Þ´óµÄÎÛȾ¡£ºËÎÛȾµÄÖ÷ÒªÊÇÒòΪºËȼÁÏ»òºË·ÏÁϾßÓР          ¡£

£¨3£©¸ù¾ÝÉÏͼ£¬ÇëÔÚ·½¿òÄÚÍê³ÉºËµçÕ¾·¢µç¹ý³ÌÖÐÄÜÁ¿µÄת»¯Á÷³Ìͼ£º

        

  £¨4£©×Ðϸ¹Û²ìºËµçÕ¾µÄÔ­Àíͼ¡£ÔÚ·¢µç¹ý³ÌÖУ¬Ë®·¢ÉúµÄÎï̬±ä»¯ÓÐÆû»¯ºÍ      ¡£

ºËµçÕ¾ÔÚÔËÐйý³ÌÖÐÒª²úÉú¾Þ´óÈÈÁ¿£¬³£ÓÃË®À´ÀäÈ´£¬ÕâÊÇÒòΪˮ¾ßÓР              £¬

ºËµçÕ¾Ò»°ã½¨ÔÚº£±ß¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸