ijѧϰС×éÔÚ¡°Ì½¾¿¹¦ÓëËٶȱ仯¹Øϵ¡±µÄʵÑéÖвÉÓöîÈçͼËùʾµÄʵÑé×°Öá£

£¨1£©½«Æøµæµ¼¹ì½ÓͨÆø±Ã£¬Í¨¹ýµ÷ƽÂÝË¿µ÷ÕûÆøµæµ¼¹ìʹ֮ˮƽ£¬¼ì²éµ¼¹ìÊÇ·ñµ÷ƽµÄ·½·¨ÊÇ

__________________________________________

£¨2£©ÈçͼÒÒËùʾ£¬ÓÃÓα꿨³ß²âµÃÕÚ¹âÌõµÄ¿í¶È=________cm£»ÊµÑéʱ£¬½«ÏðƤÌõ¹ÒÔÚ»¬¿éµÄ¹Ò¹³ÉÏ£¬Ïòºó£¨ÏòÓÒ£©À­ÉìÒ»¶¨µÄ¾àÀ룬²¢×öºÃ±ê¼Ç£¬ÒÔ±£Ö¤Ã¿´ÎÀ­ÉìµÄ¾àÀëºã¶¨£¬ÏÖ²âµÃ¹ÒÒ»¸ùÏðƤÌõʱ»¬¿éµ¯ÀëÏðƤÌõºó£¬¾­¹ý¹âµçÃÅ1ºÍ¹âµçÃÅ2µÄʱ¼ä¾ùΪ£¬Ôò»¬¿é×îºóÔÈËÙÔ˶¯µÄËٶȱí´ïʽΪv=________£¨ÓÃ×Öĸ±íʾ£©

£¨3£©ÖðÌõÔö¼ÓÏðƤÌõ£¬¶à´ÎÖظ´ÊµÑé¡£¼Ç¼ÿ´ÎÕÚ¹âÌõ¾­¹ý¹âµçÃÅ1µÄʱ¼ä£¬²¢¼ÆËã³ö¶ÔÓ¦µÄËٶȣ¬Ôò»­³öµÄͼÏñÓ¦ÊÇ____________________________________________¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2015-2016ѧÄêºþÄÏʡ¦µ×ÊÐÃûУ¸ßÒ»ÆÚÄ©ÎïÀí¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÈçͼËùʾ£¬Çá¸ËÒ»¶ËPÓù⻬Öá¹Ì¶¨ÓÚÊúֱǽÉÏ£¬ÁíÒ»¶ËOÓÃÇáÉþϵÓÚǽÉÏAµã£¬Çá¸ËÇ¡ºÃˮƽ£®Ò»ÎïÌåÐü¹ÒÓÚOµã£¬ÏÖ½«Aµã»ºÂýÉÏÒÆ£¬Í¬Ê±¼Ó³¤ÇáÉþʹÇá¸ËÈÔ±£³Öˮƽ£¬Ôò¹ØÓÚÇá¸ËËùÊÜѹÁ¦ÓëÇáÉþËùÊÜÀ­Á¦µÄÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨ £©

A£®Çá¸ËÊÜѹÁ¦Ôö´ó B£®Çá¸ËÊÜѹÁ¦¼õС

C£®ÇáÉþÊÜÀ­Á¦Ôö´ó D£®ÇáÉþÊÜÀ­Á¦¼õС

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2016½ì½­ËÕ»´°²µÈËÄÊиßÈýÉÏÆÚÆÚÄ©ÎïÀí¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ

A£®µç×ÓµÄÑÜÉäͼÑù±íÃ÷µç×Ó¾ßÓв¨¶¯ÐÔ

B£®Ì«Ñô·øÉäµÄÄÜÁ¿Ö÷ÒªÀ´×ÔÌ«ÑôÄÚ²¿µÄÈȺ˷´Ó¦

C£®ÇâÔ­×Ó´Óij¼¤·¢Ì¬Ô¾Ç¨ÖÁ»ù̬ҪÎüÊÕÌض¨ÆµÂʵĹâ×Ó

D£®½áºÏÄÜÔ½´ó£¬Ô­×ÓºËÖкË×Ó½áºÏµÃÔ½Àι̣¬Ô­×ÓºËÔ½Îȶ¨

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2015-2016ѧÄêºþ±±Î人¶þÖи߶þÉÏÆÚÆÚÄ©ÎïÀí¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÈçͼËùʾ£¬ A¡¢BÊÇÁ½¸öÍêÈ«ÏàͬµÄµÆÅÝ£¬DÊÇÀíÏë¶þ¼«¹Ü£¬LÊÇ´øÌúоµÄÏßȦ£¬ÆäÖ±Á÷µç×èºöÂÔ²»¼Æ¡£ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ

A£®S±ÕºÏ˲¼ä£¬AÏÈÁÁ

B£®S±ÕºÏ˲¼ä£¬A¡¢BͬʱÁÁ

C£®S¶Ï¿ªË²¼ä£¬BÖð½¥Ï¨Ãð

D£®S¶Ï¿ªË²¼ä£¬AÉÁÁÁһϣ¬È»ºóÖð½¥Ï¨Ãð

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2016½ìºÓ±±ÎäÒØÖÐѧ¸ßÈýÉÏÆÚÆÚÄ©¿¼ÊÔÎïÀí¾í£¨½âÎö°æ£© ÌâÐÍ£ºÊµÑéÌâ

Ôڲⶨij½ðÊôµÄµç×èÂÊʵÑéÖУºA.ijѧÉú½øÐÐÁËÈçϲÙ×÷

¢ÙÀûÓÃÂÝÐý²â΢Æ÷²â½ðÊôË¿Ö±¾¶d£¬ÈçͼËùʾ£¬Ôòd=_________mm

¢Ú²âÁ¿½ðÊôË¿µç×èµÄµçÁ¦ÂÛ̳ÈçͼAËùʾ£¬±ÕºÏµç¼üS£¬ÏȺ󽫵çѹ±íÓÒ²à½ÓÏ߶ËP½ÓA.bµãʱ£¬µçѹ±íºÍµçÁ÷±íµÄʾÊýÈçϱíËùʾ¡£

ͼA

¸ÃѧÉúÈÏÕæ¹Û²ìµ½Á½´Î²âÁ¿ÖУ¬µçÁ÷±íµÄ¶ÁÊý¼¸ºõδ±ä£¬±È½ÏºÏÀíÇÒ½Ï׼ȷµÄ½ðÊôË¿µç×è=_________¦¸£¨±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£¬´ÓϵͳÎó²î½Ç¶È·ÖÎö£¬µÄ²âÁ¿ÖµÓëÆäÕæʵֵ±È½Ï£¬_______£¨Ìî¡°´óÓÚ¡±¡°µÈÓÚ¡±»òÕß¡°Ð¡ÓÚ¡±£©

ͼB

B.ÁíһͬѧÕÒÀ´Ò»ºãѹµçÔ´£¬°´Í¼BµÄµç·ÏȺ󽫽ÓÏ߶ËP·Ö±ð½Óa´¦ºÍb´¦£¬²âµÃÏà¹ØÊý¾ÝÈçͼËùʾ£¬¸ÃͬѧÀûÓøÃÊý¾Ý¿ÉËã³öµÄÕæʵֵΪ______¦¸

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2015-2016ѧÄêɽÎ÷ÁÙ·ÚÒ»ÖиßÒ»ÉÏÆÚÆÚÄ©ÎïÀí¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÈçͼËùʾ£¬ÈËÕ¾Á¢ÔÚÌåÖؼÆÉÏ£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ

A£®È˶ÔÌåÖؼƵÄѹÁ¦ºÍÌåÖؼƶÔÈ˵ÄÖ§³ÖÁ¦ÊÇÒ»¶ÔƽºâÁ¦

B£®È˶ÔÌåÖؼƵÄѹÁ¦ºÍÌåÖؼƶÔÈ˵ÄÖ§³ÖÁ¦ÊÇÒ»¶Ô×÷ÓÃÁ¦ºÍ·´×÷ÓÃÁ¦

C£®ÈËËùÊܵÄÖØÁ¦ºÍÈ˶ÔÌåÖؼƵÄѹÁ¦ÊÇÒ»¶ÔƽºâÁ¦

D£®ÈËËùÊܵÄÖØÁ¦ºÍÈ˶ÔÌåÖؼƵÄѹÁ¦ÊÇÒ»¶Ô×÷ÓÃÁ¦ºÍ·´×÷ÓÃÁ¦

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2015-2016ѧÄê°²»Õ°²ÇìÒ»Öи߶þÉÏÆÚÆÚÄ©¿¼ÊÔÎïÀí¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÈçͼËùʾ£¬ÔÚxOyƽÃæµÄµÚ¢òÏóÏÞÄÚÓа뾶ΪRµÄÔ²·Ö±ðÓëxÖá¡¢yÖáÏàÇÐÓÚP¡¢QÁ½µã£¬Ô²ÄÚ´æÔÚ´¹Ö±ÓÚxOyƽÃæÏòÍâµÄÔÈÇ¿´Å³¡¡£ÔÚµÚ¢ñÏóÏÞÄÚ´æÔÚÑØyÖḺ·½ÏòµÄÔÈÇ¿µç³¡£¬µç³¡Ç¿¶È´óСΪE¡£Ò»´øÕýµçµÄÁ£×Ó£¨²»¼ÆÖØÁ¦£©ÒÔËÙÂÊ´ÓPµãÉäÈë´Å³¡ºóÇ¡ºÃ´¹Ö±yÖá½øÈëµç³¡£¬×îºó´ÓM£¨3R£¬0£©µãÉä³öµç³¡£¬³öÉä·½ÏòÓëxÖáÕý·½Ïò¼Ð½Ç¦Á£½45¡ã£¬Ôò£¨ £©

A£®´øµçÁ£×ÓÔڴų¡ÖÐÔ˶¯µÄ¹ìµÀ°ë¾¶ÎªR

B£®´Å³¡µÄ´Å¸ÐӦǿ¶È´óСΪ

C£®´øµçÁ£×ӵıȺÉΪ

D£®´øµçÁ£×ÓÔ˶¯¾­¹ýyÖáµÄ×Ý×ø±êֵΪ1.5R

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2015-2016ѧÄêɽÎ÷ÐÃÖÝÒ»ÖиßÒ»ÉÏÆÚÆÚÄ©ÎïÀí¾í£¨½âÎö°æ£© ÌâÐÍ£º¼ÆËãÌâ

Ò»¸ö»¬Ñ©µÄÈË£¬ÖÊÁ¿m=60kg£¬ÒÔv0=2m/sµÄ³õËÙ¶ÈÑØÇã½Ç¦È=30¡ãɽÆÂÔȼÓËÙ»¬Ï£¬ÔÚt=10sµÄʱ¼äÄÚ»¬ÏµÄ·³Ìx=100m¡££¨gÈ¡10m/s2£©

£¨1£©×÷³ö»¬Ñ©È˵ÄÊÜÁ¦Í¼£»

£¨2£©Çó»¬Ñ©È˵ļÓËٶȣ»

£¨3£©Çó»¬Ñ©ÈËÊܵ½µÄ×èÁ¦¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2016½ì¸£½¨Ê¡¸ßÈýÉÏѧÆÚÆÚÖп¼ÊÔÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

Ò»Æû³µÔÚƽֱ¹«Â·ÉÏÒÔ20kWµÄ¹¦ÂÊÐÐÊ»£¬t1ʱ¿ÌÊ»ÈëÁíÒ»¶Î×èÁ¦ºã¶¨µÄƽֱ¹«Â·£¬Æäv~tͼÏóÈçͼËùʾ£¬ÒÑÖªÆû³µµÄÖÊÁ¿Îª2¡Á103kg¡£ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨ £©

A£®t1Ç°Æû³µÊܵ½µÄ×èÁ¦´óСΪ1¡Á103N

B£®t1ºóÆû³µÊܵ½µÄ×èÁ¦´óСΪ4¡Á103N

C£®t1ʱ¿ÌÆû³µ¼ÓËٶȴóСͻȻ±äΪ1m/s2

D£®t1¡«t2ʱ¼äÄÚÆû³µµÄƽ¾ùËÙ¶ÈΪ7.5m/s

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸