·ÖÎö £¨1£©¢Ù¸ù¾ÝG=mg¼ÆË㶯»¬ÂÖµÄÖØÁ¦£»
¢Ú¿Ë·þÎïÌåÖØÁ¦×öµÄ¹¦ÊÇÓÐÓù¦£¬Éþ×Ó×ÔÓɶËÀÁ¦×öµÄ¹¦ÊÇ×ܹ¦£®
£¨2£©¢ÙÀûÓöþÁ¦µÄƽºâ֪ʶ¿ÉÖª£¬Ö»ÓÐÊúÖ±ÔÈËÙÀ¶¯µ¯»É³Óʱ£¬µ¯»É³ÓµÄʾÊý²ÅµÈÓÚÀÁ¦µÄ´óС£»
¢ÚÉþ×Ó×ÔÓɶËÒƶ¯µÄ¾àÀëµÈÓÚÎïÌåÉý¸ßµÄ¸ß¶ÈºÍÉþ×Ó¶ÎÊýµÄ³É¼¨£¬¼´s=nh£®
£¨3£©¦Ç=$\frac{Gh}{£¨mg+G£©h}$Ö»¿¼ÂǶ¯»¬ÂÖµÄÖØ£¬Ã»Óп¼ÂÇÉþÖغÍĦ²Á£»¦Ç=$\frac{Gh}{Fs}$ͬʱ¿¼Âǵ½¶¯»¬ÂÖÖØ¡¢ÉþÖØ¡¢Ä¦²Á£¬ÓÐÓù¦²»±ä£¬ºóÕß×ܹ¦Ôö´ó£¬ËùÒÔºóÕß»úеЧÂÊƫС£®
£¨4£©»¬ÂÖ×éÒ»¶¨Ê±£¬Ôö´óÌáÉýÎïÌåµÄÖØ£¬ÓÐÓù¦ÔÚ×ܹ¦ÖбÈÖµÔö´ó£¬»úеЧÂÊÔö´ó£®
½â´ð ½â£º£¨1£©¢ÙÓÉÌâÒâµÃ£¬¶¯»¬ÂÖµÄÖØÁ¦G=mg=20¡Á10-3kg¡Á10N/kg=0.2N£»
¢ÚFÖ¸µÄÊÇÉþ×Ó×ÔÓɶ˵ÄÀÁ¦£¬sÊǵ¯»É³ÓÒƶ¯µÄ¾àÀ룬Òò´ËFsÊǵ¯»É²âÁ¦¼ÆÀÁ¦×öµÄ¹¦£¬ÊôÓÚ×ܹ¦£®
£¨2£©¢ÙÖ»ÓÐÈù³ÂëÔÈËÙÉÏÉý£¬´Ëʱ»¬ÂÖ¶Ô¹³ÂëµÄÀÁ¦µÄ´óС²Å»áµÈÓÚ¹³ÂëµÄÖØÁ¦£¬²âÁ¦¼ÆµÄʾÊý²ÅµÈÓÚÀÁ¦µÄ´óС£»
¢ÚÓÉͼ֪£¬n=3£¬Ôòs=3h£®
£¨3£©¦Ç=$\frac{Gh}{£¨mg+G£©h}$£¬×ܹ¦µÈÓÚÌáÉý¶¯»¬ÂÖºÍÖØÎï×öµÄ¹¦£¬Ìõ¼þ£º²»¿¼ÂÇÉþÖغÍĦ²Á£»
¦Ç=$\frac{Gh}{Fs}$£¬Í¬Ê±¿¼Âǵ½¶¯»¬ÂÖÖØ¡¢ÉþÖØ¡¢Ä¦²Á£»
Á½¸ö¹«Ê½ÖУ¬ÌáÆðÎïÌåʱÓÐÓù¦Ïàͬ£¬¸ù¾Ý¦Ç=$\frac{Gh}{£¨mg+G£©h}$¼ÆËãʱ×ܹ¦Æ«Ð¡£¬»úеЧÂÊÆ«´ó£®
£¨4£©Í¬Ò»»¬ÂÖ×éÌáÆð¹³ÂëµÄÖØÔö¼Ó£¬¶îÍ⹦¼¸ºõ²»±ä£¬ÓÐÓù¦ÔÚ×ܹ¦µÄ±ÈÖµÔö´ó£¬ËùÒÔͬһ»¬ÂÖ×éÌáÆðµÄÎïÌåÔ½ÖØ£¬»úеЧÂÊÔ½¸ß£®
¹Ê´ð°¸Îª£º£¨1£©0.2£»×Ü£»
£¨2£©ÔÈËÙ£»3£»
£¨3£©²»¼ÆÉþÖؼ°Ä¦²Á£»Æ«´ó£»
£¨4£©Ôö´ó£®
µãÆÀ »¬ÂÖ×éµÄ»úеЧÂʸúÌáÆðÎïÌåµÄÖØÁ¦¡¢ÉþÖØ¡¢Ä¦²Á¡¢¶¯»¬ÂÖÖØÓйأ¬¸úÎïÌåÉý¸ßµÄ¾àÀë¡¢ÌáÆðµÄËÙ¶ÈûÓйØϵ£¬¼ÆËãʱҪעÒâÌõ¼þ£»»¬ÂÖ×éÒ»¶¨Ê±£¬Ôö´óÌáÉýÎïÌåµÄÖØ£¬ÓÐÓù¦ÔÚ×ܹ¦ÖбÈÖµÔö´ó£¬»úеЧÂÊÉý¸ß£®
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÌî¿ÕÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÔÚÆäËûÌõ¼þÏàͬʱ£¬º£°Î¸ß¶ÈÔ½¸ß£¬´óÆøѹµÄֵԽС | |
B£® | ×öÍÐÀï²ðÀûʵÑéʱ£¬»»ÓôÖϸ²»Í¬µÄ²£Á§¹Ü×öʵÑ飬²âÁ¿½á¹û²»Í¬ | |
C£® | µÚÒ»´Î׼ȷ²â³ö´óÆøѹÊýÖµµÄʵÑéÊÇÂíµÂ±¤°ëÇòʵÑé | |
D£® | ÓÃËÜÁÏÎü¹ÜÎüÒûÁÏ£¬ÊÇ¿¿×ìµÄÎüÁ¦£¬²¢Ã»ÓÐÀûÓõ½´óÆøѹ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ×öÔÈËÙÖ±ÏßÔ˶¯ | B£® | ¼ÌÐø°´ÔÀ´µÄ¹ìµÀ·ÉÐÐ | ||
C£® | ÂíÉÏÂäÏòµØÃæ | D£® | ÂýÂý¼õËÙÏÂÂä |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | µ¼µçÐԺà | B£® | ÈÛµãµÍ | C£® | ÃܶÈС | D£® | µ¼ÈÈÐԺà |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | Éþ×ÓÊܵÄÀÁ¦F1ºÍF2µÄ´óС²»ÏàµÈ£¬»¬ÂÖ×éµÄ»úеЧÂʲ»Í¬ | |
B£® | Éþ×Ó×ÔÓɶËÒƶ¯µÄ¾àÀë²»ÏàµÈ£¬ÀÁ¦¶Ô»¬ÂÖ×éËù×öµÄ¹¦ÏàµÈ | |
C£® | Éþ×ÓÊܵÄÀÁ¦F1ºÍF2µÄ´óСÏàµÈ£¬»¬ÂÖ×éµÄ»úеЧÂÊÏàͬ | |
D£® | Éþ×Ó×ÔÓɶËÒƶ¯µÄ¾àÀë²»ÏàµÈ£¬ÀÁ¦¶Ô»¬ÂÖ×éËù×öµÄ¹¦²»ÏàµÈ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - 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