3£®ÈçͼËùʾ£¬É϶ËÓп¨¿ÚµÄ¾øÈÈÆø¸×¿ª¿ÚÏòÉÏ·ÅÖã¬Æø¸×ÄÚÓÃÁ½¸öÇá»îÈûM¡¢N·â±ÕÁ½²¿·ÖÆøÌåA¡¢B£¬»îÈûM¾øÈÈ£¬»îÈûNµ¼ÈÈÁ¼ºÃ£¬»îÈûÓë¸×±ÚÎÞĦ²Á£®Æø¸×µÄ×ÜÈÝ»ýΪV0£¬¿ªÊ¼Ê±A¡¢BÆøÌåÌå»ý¾ùΪ$\frac{V_0}{3}$£¬ÆøÌåA¡¢BºÍÍâ½ç»·¾³Î¶ȾùΪ300K£®ÏÖÓõçÈÈË¿»ºÂý¼ÓÈÈÆøÌåA£®Çó£º
¢Ùµ±»îÈûNÇ¡ºÃµ½´ïÆø¸×¶¥²¿Ê±£¬AÆøÌåµÄζȣ»
¢Úµ±AÆøÌåµÄζÈÉý¸ßµ½900Kʱ£¬AÆøÌåµÄÌå»ý£®

·ÖÎö £¨1£©¶ÔAÖÐÆøÌå¸ù¾Ý¸ÇÂÀÈø¿Ë¶¨ÂÉÇó»îÈûNÇ¡ºÃµ½´ï¶¥²¿Ê±µÄζÈ
£¨2£©B²¿·ÖÆøÌå·¢ÉúµÈα仯¸ù¾Ý²£Òâ¶ú¶¨ÂÉÁÐʽ£¬AÖÐÆøÌå¸ù¾ÝÀíÏëÆøÌå״̬·½³ÌÁÐʽÁªÁ¢Çó½â

½â´ð ½â£º¢ÙÉèζÈΪ${T}_{1}^{\;}$ʱ»îÈûNÇ¡ºÃµ½´ïÆø¸×¶¥²¿£¬´ËʱAÖÐÆøÌåµÄѹǿΪ${p}_{0}^{\;}$£¬Ìå»ýΪ${V}_{1}^{\;}=\frac{2{V}_{0}^{\;}}{3}$
ÓɸÇÂÀÈø¿Ë¶¨ÂɵÃ$\frac{\frac{{V}_{0}^{\;}}{3}}{{T}_{0}^{\;}}=\frac{\frac{2{V}_{0}^{\;}}{3}}{{T}_{1}^{\;}}$
${T}_{1}^{\;}=600K$
¢Úµ±Î¶È${T}_{2}^{\;}=900K$ʱ»îÈûNÒѾ­Óë¶¥²¿·¢ÉúÏ໥¼·Ñ¹£¬
Éè´ËʱAÖÐÆøÌåµÄÌå»ýΪ${V}_{2}^{\;}$£¬Ñ¹Ç¿ÎªP£®
¶ÔAÖÐµÄÆøÌåÓÉÀíÏëÆøÌåµÄ״̬·½³Ì¿ÉµÃ$\frac{p{V}_{2}^{\;}}{{T}_{2}^{\;}}=\frac{{p}_{0}^{\;}\frac{{V}_{0}^{\;}}{3}}{{T}_{0}^{\;}}$
¶ÔBÖÐµÄÆøÌåÓɲ£Òâ¶ú¶¨ÂɵÃ$p£¨{V}_{0}^{\;}-{V}_{2}^{\;}£©={p}_{0}^{\;}\frac{{V}_{0}^{\;}}{3}$
¹Ê${V}_{2}^{\;}=\frac{3}{4}{V}_{0}^{\;}$
´ð£º¢Ùµ±»îÈûNÇ¡ºÃµ½´ïÆø¸×¶¥²¿Ê±£¬AÆøÌåµÄζÈ600K£»
¢Úµ±AÆøÌåµÄζÈÉý¸ßµ½900Kʱ£¬AÆøÌåµÄÌå»ý$\frac{3}{4}{V}_{0}^{\;}$£®

µãÆÀ ½â¾ö±¾ÌâµÄ¹Ø¼üÊÇÅжÏÁ½²¿·ÖÆøÌå¸÷×öºÎÖֱ仯¹ý³Ì£¬Ñ¡ÔñºÏÊÊµÄÆøÌåʵÑ鶨ÂÉ»òÀíÏëÆøÌå״̬·½³ÌÁÐʽÇó½â¼´¿É£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÌî¿ÕÌâ

13£®ÈçͼËùʾ£¬´Öϸ¾ùÔȵȸßÇÒÄڱڹ⻬µÄ×óÓÒÁ½Æø¸×£¬×ó±ßÆø¸×µÄÖ±¾¶ÎªÓ񱧮ø¸×µÄ2±¶£¬µ×²¿Ïàͨ£¬µ×±ÚΪ¾ùÔȼÓÈÈÅÌ£®×ó±ßÆø¸×¶¥¶ËÓë´óÆøÁ¬Í¨£¬Ó񱧮ø¸×¶¥¶Ë·â±ÕÇÒµ¼ÈÈÁ¼ºÃ£¬Á½Æø¸×²à±Ú¾ù¾øÈÈ£®Á½Æø¸×Öи÷ÓÐÒ»ºñ¶È¡¢ÖØÁ¦¾ù¿ÉºöÂԵľøÈÈ»îÈûa¡¢b£¬»îÈûbÉÏ·½³äÓÐÑõÆø£¬µ±´óÆøÑ¹Îªp0£¬Íâ½çºÍÆø¸×ÄÚÆøÌåζȾùΪ27¡æÊ±£¬»îÈûa¾²Ö¹ÔÚÁ¦Æø¸×¶¥µÄ¾àÀëÊÇÆø¸×¸ß¶ÈµÄ$\frac{1}{4}$´¦£¬»îÈûb¾²Ö¹ÔÚÆø¸×µÄÕýÖм䣮
£¨1£©ÏÖͨ¹ý¼ÓÈÈÅÌ»ºÂý¼ÓÈÈÇâÆø£¬µ±»îÈûa¸ÕºÃÉýÖÁ¶¥²¿Ê±£¬ÇóÇâÆøµÄζȣ¨¼ÆËã½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©£»£¨2£©¼ÌÐø»ºÂý¼ÓÈÈ£¬Ê¹»îÈûbÉÏÉý£¬µ±»îÈûbÉÏÉýµÄ¾àÀëÊÇÆø¸×¸ß¶ÈµÄ$\frac{1}{4}$ʱ£¬ÇóÑõÆøµÄѹǿ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º¶àÑ¡Ìâ

14£®2011Äê4ÔÂ10ÈÕ£¬ÎÒ¹ú³É¹¦·¢ÉäµÚ8¿Å±±¶·µ¼º½ÎÀÐÇ£®½¨³ÉÒÔºó±±¶·µ¼º½ÏµÍ³½«°üº¬¶à¿ÅµØÇòͬ²½ÎÀÐÇ£¬ÕâÓÐÖúÓÚ¼õÉÙÎÒ¹ú¶ÔGPSµ¼º½ÏµÍ³µÄÒÀÀµ£®GPSÓÉÔËÐÐÖÜÆÚΪ12СʱµÄÎÀÐÇȺ×é³É£®Éè±±¶·µ¼º½ÏµÍ³µÄͬ²½ÎÀÐǺÍGPSµ¼º½ÎÀÐǵĹìµÀ°ë¾¶·Ö±ðΪR1ºÍR2£¬ÏòÐļÓËÙ¶È·Ö±ðΪa1ºÍa2£¬Ôò£¨¡¡¡¡£©
A£®R1£ºR2=$\sqrt{4}$£º1B£®R1£ºR2=$\root{3}{4}$£º1C£®a1£ºa2=1£º2$\root{3}{2}$D£®a1£ºa2=1£º2$\sqrt{2}$

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º¶àÑ¡Ìâ

11£®ÈçͼËùʾ£¬ÔÚ²»¼Æ»¬ÂÖĦ²ÁºÍÉþ×ÓÖÊÁ¿µÄÌõ¼þÏ£¬µ±Ð¡³µÏòÓÒ×öÔÈËÙÖ±ÏßÔ˶¯£¬Ôò¹ØÓÚÎïÌåAµÄÔ˶¯Çé¿ö¼°ÊÜÁ¦Çé¿ö˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®AÏòÉÏ×ö¼ÓËÙÔ˶¯B£®AÏòÉÏ×ö¼õËÙÔ˶¯
C£®Éþ×Ó¶ÔAµÄÀ­Á¦´óÓÚAµÄÖØÁ¦D£®Éþ×Ó¶ÔAµÄÀ­Á¦Ð¡ÓÚAµÄÖØÁ¦

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

18£®ÈçͼÊÇ×ÔÐгµ´«¶¯»ú¹¹µÄʾÒâͼ£¬ÆäÖТñÊÇ´ó³ÝÂÖ£¬¢òÊÇС³ÝÂÖ£¬¢óÊǺóÂÖ£®
£¨1£©ÒªÖªµÀÔÚÕâÖÖÇé¿öÏÂ×ÔÐгµÇ°½øµÄËÙ¶ÈÓжà´ó£¬³ýÐèÒª²âÁ¿´ó³ÝÂÖ¢ñµÄ°ë¾¶r1£¬Ð¡³ÝÂÖ¢òµÄ°ë¾¶r2Í⣬»¹ÐèÒª²âÁ¿µÄÎïÀíÁ¿ÊÇ´ó³ÝÂֵİ뾶r1£¬Ð¡³ÝÂֵİ뾶r2£¬ºóÂֵİ뾶r3 £®
£¨2£©¼ÙÉè½Å̤°åµÄתËÙΪn£¬Ôò´ó³ÝÂֵĽÇËÙ¶ÈÊÇ2¦Ðn£®
£¨3£©ÓÃÉÏÊöÁ¿ÍƵ¼³ö×ÔÐгµÇ°½øËٶȵıí´ïʽ$\frac{2¦Ðn{r}_{1}{r}_{3}}{{r}_{2}}$£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

8£®Ò»ËÒ´¬ÔÚ¾²Ë®ÖеÄËÙ¶ÈΪ0.4m/s£¬ºÓË®µÄÁ÷ËÙΪ0.3m/s£®Ð¡´¬ÔÚºÓÖУ¨¶ÔµØ£©Ô˶¯µÄËٶȲ»¿ÉÄÜÊÇ£¨¡¡¡¡£©
A£®0.1m/sB£®0.8m/sC£®0.7m/sD£®0.5m/s

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

15£®Ä³ÎÀÐÇÔڰ뾶ΪrµÄ¹ìµÀ1ÉÏ×öÔ²ÖÜÔ˶¯£¬¶¯ÄÜΪEk£¬±ä¹ìµ½¹ìµÀ2ÉϺ󣬶¯ÄܱÈÔÚ¹ìµÀ1ÉϼõСÁË¡÷E£¬ÔÚ¹ìµÀ2ÉÏÒ²×öÔ²ÖÜÔ˶¯£¬Ôò¹ìµÀ2µÄ°ë¾¶Îª£¨¡¡¡¡£©
A£®$\frac{{E}_{k}}{{E}_{k}-¡÷E}$rB£®$\frac{{E}_{k}}{{E}_{k}-¡÷E}$rC£®$\frac{¡÷E}{{E}_{k}-¡÷E}$rD£®$\frac{{E}_{k}-¡÷E}{¡÷E}$r

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ

12£®ÈçͼËùʾ£¬Ä¾¿éA¡¢BµÄÖÊÁ¿·Ö±ðΪm1¡¢m2£¬ÓÉÇáÖʵ¯»ÉÏàÁ¬½Ó£¬ÖÃÓڹ⻬µÄË®Æ½ÃæÉÏ£¬ÓÃÒ»ÇáÉþ°ÑÁ½Ä¾¿éÀ­ÖÁ×î½ü£¬Ê¹µ¯»É´¦ÓÚ×î´óѹËõ״̬±Á½ô£¬Á½Ä¾¿éÒ»ÆðÒԺ㶨µÄËÙ¶Èv0ÏòÓÒ»¬¶¯£®Ä³Ê±¿ÌͻȻÇáÉþ¶Ï¿ª£¬µ±µ¯»ÉÉ쳤ÖÁ±¾ÉíµÄ×ÔÈ»³¤¶Èʱ£¬Ä¾¿éAµÄËÙ¶ÈÕýºÃΪÁ㣮Çó£º
£¨1£©´Ëʱľ¿éBµÄËÙ¶È£»
£¨2£©ÇáÉþ¶Ï¿ªÇ°µ¯»ÉµÄµ¯ÐÔÊÆÄÜ£»
£¨3£©Èç¹ûÔÚÒÔºóµÄÔ˶¯¹ý³ÌÖУ¬Ä¾¿éBÓÐËٶȵÈÓÚÁãµÄʱ¿Ì£¬Ôòľ¿éA¡¢BµÄÖÊÁ¿m1¡¢m2Ó¦Âú×ãµÄ¹ØÏµÊÇʲô£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ

13£®Ä³½ðÊôÊܵ½ÆµÂÊΪ¦Ã1=7.0¡Á1014HzµÄ×ϹâÕÕÉäʱ£¬ÊͷųöÀ´µÄ¹âµç×Ó×î´ó³õ¶¯ÄÜÊÇ0.69eV£¬µ±Êܵ½ÆµÂÊΪ¦Ã2=11.8¡Á1014HzµÄ×ÏÍâÏßÕÕÉäʱ£¬ÊͷųöÀ´µÄ¹âµç×Ó×î´ó³õ¶¯ÄÜÊÇ2.69eV£¬Çó£º
£¨1£©ÆÕÀʿ˳£Á¿£»
£¨2£©¸Ã½ðÊôµÄÒݳö¹¦ºÍ¼«ÏÞÆµÂÊ£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸