Äúµ±Ç°ËùÔÚλÖãºÊ×Ò³ > ÃûУÕÐÉú >

ÃûУÕÐÉú¿¼ÊÔÌâÄ¿¼°´ð°¸Ïê½â¸ßÒ»

±à¼­£ºrichie

2023-08-28 13:57:09

ÃûУÕÐÉú¿¼ÊÔÌâÄ¿¼°´ð°¸Ïê½â¸ßÒ»

ÔÚ¸ßÖн׶Σ¬ÃûУÕÐÉú¿¼ÊÔ³ÉΪÁËÐí¶àѧÉúºÍ¼Ò³¤¹Ø×¢µÄ½¹µã¡£ÕâЩ¿¼ÊÔµÄÌâÄ¿ÍùÍù·Ç³£ÓÐÌôÕ½ÐÔ£¬ÒªÇóѧÉú¾ß±¸ÔúʵµÄ֪ʶ»ù´¡ºÍ³öÉ«µÄ½âÌâÄÜÁ¦¡£±¾ÎĽ«Ïêϸ½âÎöһЩ¸ßһѧÉúÐèÒªÕÆÎÕµÄÃûУÕÐÉú¿¼ÊÔÌâÄ¿¼°´ð°¸£¬Ï£ÍûÄܶԹã´óѧÉúÌṩ°ïÖú¡£

ÊýѧÌâÄ¿

1. Èôº¯Êý f(x) = 2x^3 + 5x^2 - 3x + 2£¬Çó f(1) µÄÖµ¡£

½âÎö£º

¸ù¾ÝÌâÄ¿ÌṩµÄº¯Êý f(x) = 2x^3 + 5x^2 - 3x + 2£¬ÎÒÃÇÐèÒªÇó³ö f(1) µÄÖµ¡£½« x Ì滻Ϊ 1£¬µÃµ½£º

f(1) = 2(1)^3 + 5(1)^2 - 3(1) + 2

= 2 + 5 - 3 + 2

= 6

ËùÒÔ£¬f(1) µÄֵΪ 6¡£

2. ÒÑÖªÈý½ÇÐÎ ABC£¬ÆäÖÐ ¡ÏA = 50¡ã£¬¡ÏB = 70¡ã£¬Çó ¡ÏC µÄ¶ÈÊý¡£

½âÎö£º

¸ù¾ÝÈý½ÇÐÎÄڽǺͶ¨Àí£¬Èý½ÇÐÎ ABC µÄÈý¸öÄÚ½ÇÖ®ºÍµÈÓÚ 180¡ã¡£ËùÒÔÎÒÃÇÓУº

¡ÏC = 180¡ã - ¡ÏA - ¡ÏB

= 180¡ã - 50¡ã - 70¡ã

= 60¡ã

Òò´Ë£¬¡ÏC µÄ¶ÈÊýΪ 60¡ã¡£

ÎïÀíÌâÄ¿

1. ÖʵãÒÔ 5 m/s µÄËÙ¶ÈÔÈËÙÔ˶¯ 10 s£¬ÇóÖʵãµÄλÒÆ¡£

½âÎö£º

¸ù¾ÝÔÈËÙÔ˶¯µÄ¶¨Ò壬λÒƵÈÓÚËٶȳËÒÔʱ¼ä¡£ËùÒÔÎÒÃÇÓУº

λÒÆ = 5 m/s * 10 s

= 50 m

Òò´Ë£¬ÖʵãµÄλÒÆΪ 50 Ãס£

2. Ò»¸öÎïÌå´Ó 3 m µÄ¸ß¶È×ÔÓÉÏÂÂ䣬ÇóËüÂäµØʱµÄËٶȡ£

½âÎö£º

¸ù¾Ý×ÔÓÉÂäÌåÔ˶¯µÄ¹æÂÉ£¬ÎïÌåÏÂÂäµÄËٶȿÉÒÔÓÃÒÔϹ«Ê½¼ÆË㣺

v = ¡Ì(2 * g * h)

ÆäÖУ¬v ±íʾËٶȣ¬g ±íʾÖØÁ¦¼ÓËٶȣ¬h ±íʾÎïÌåÏÂÂäµÄ¸ß¶È¡£´úÈëÒÑÖªÊý¾Ý£¬ÎÒÃÇÓУº

v = ¡Ì(2 * 9.8 m/s^2 * 3 m)

= ¡Ì(58.8 m^2/s^2)

= 7.67 m/s

Òò´Ë£¬ÎïÌåÂäµØʱµÄËÙ¶ÈԼΪ 7.67 m/s¡£

»¯Ñ§ÌâÄ¿

1. ÒÑÖª»¯ºÏÎï A µÄ»¯Ñ§Ê½Îª C6H12O6£¬ÇóÆä·Ö×ÓÁ¿¡£

½âÎö£º

»¯ºÏÎïµÄ·Ö×ÓÁ¿µÈÓÚ¸÷¸öÔ­×ÓµÄÏà¶ÔÔ­×ÓÖÊÁ¿Ö®ºÍ¡£¸ù¾Ý»¯Ñ§Ê½ C6H12O6£¬ÎÒÃÇ¿ÉÒÔ¼ÆËã³ö¸Ã»¯ºÏÎïµÄ·Ö×ÓÁ¿£º

·Ö×ÓÁ¿ = 6 * Ïà¶ÔÔ­×ÓÖÊÁ¿(C) + 12 * Ïà¶ÔÔ­×ÓÖÊÁ¿(H) + 6 * Ïà¶ÔÔ­×ÓÖÊÁ¿(O)

= 6 * 12 g/mol + 12 * 1 g/mol + 6 * 16 g/mol

= 72 g/mol + 12 g/mol + 96 g/mol

= 180 g/mol

ËùÒÔ£¬»¯ºÏÎï A µÄ·Ö×ÓÁ¿Îª 180 g/mol¡£

2. ij»¯ºÏÎïµÄ»¯Ñ§Ê½Îª H2O£¬ËüÖ÷Òª´æÔÚÓÚ¹Ì̬¡¢ÒºÌ¬ºÍÆø̬ÈýÖÖÐÎ̬£¬ÇëÎÊÕâÈýÖÖÐÎ̬µÄÃû³Æ·Ö±ðÊÇʲô£¿

½âÎö£º

¸ù¾Ý»¯Ñ§Ê½ H2O£¬ÎÒÃÇ¿ÉÒÔÅжϸû¯ºÏÎïÊÇË®¡£Ë®ÔÚ²»Í¬µÄζȺÍѹÁ¦Ï¿ÉÒÔ´æÔÚΪ¹Ì̬¡¢ÒºÌ¬ºÍÆø̬¡£ËüÃǵÄÃû³Æ·Ö±ðΪ£º

¹Ì̬£º±ù

Һ̬£ºÒºË®

Æø̬£ºË®ÕôÆø

ËùÒÔ£¬¸ù¾Ý²»Í¬µÄζȺÍѹÁ¦Ìõ¼þ£¬H2O µÄÈýÖÖÐÎ̬·Ö±ðÊDZù¡¢ÒºË®ºÍË®ÕôÆø¡£

ÓïÎÄÌâÄ¿

1. ÏÂÃæÄĸö³ÉÓïµÄÒâ˼ÊÇÐÎÈݱ©·çÓê¹ýºóÌì¿ÕÃ÷ÁÁ£¿

  1. ´ð°¸£º·ÅÏÂÍÀµ¶£¬Á¢µØ³É·ð¡£
  2. Âíµ½³É¹¦¡£
  3. ¾Åţһë¡£
  4. Ò»¿ÅÀÏÊóʺ»µÁËÒ»¹øÌÀ¡£

½âÎö£º

¸ù¾ÝÌâÒ⣬ÎÒÃÇÐèҪѡ³öÒ»¸ö³ÉÓÒâ˼ÊÇÐÎÈݱ©·çÓê¹ýºóÌì¿ÕÃ÷ÁÁ¡£¸ù¾ÝÑ¡ÏîµÄÃèÊö£¬Ö»ÓÐ "·ÅÏÂÍÀµ¶£¬Á¢µØ³É·ð" ·ûºÏÒªÇó¡£ËùÒÔ£¬´ð°¸Îª "·ÅÏÂÍÀµ¶£¬Á¢µØ³É·ð"¡£

2. ÏÂÃæÄĸöÊ«¾ä³ö×ÔÌÆ´úÊ«È˶ÅÄÁµÄ×÷Æ·£¿

  1. Ã÷Ô±ðÖ¦¾ªÈµ¡£
  2. °×ÈÕÒÀɽ¾¡¡£
  3. ɽÖØË®¸´ÒÉÎÞ·¡£
  4. µ«Ô¸È˳¤¾Ã£¬Ç§Àﹲ濾ꡣ

½âÎö£º

¸ù¾ÝÑ¡ÏîµÄÃèÊö£¬Ö»ÓÐ "Ã÷Ô±ðÖ¦¾ªÈµ" ³ö×ÔÌÆ´úÊ«È˶ÅÄÁµÄ×÷Æ·¡£ËùÒÔ£¬´ð°¸Îª "Ã÷Ô±ðÖ¦¾ªÈµ"¡£

½áÓï

ͨ¹ý¶ÔһЩÃûУÕÐÉú¿¼ÊÔÌâÄ¿¼°´ð°¸µÄÏê½â£¬ÎÒÃÇÁ˽⵽Á˲»Í¬Ñ§¿ÆÖеÄһЩ³£¼ûÎÊÌâºÍ½âÌâ·½·¨¡£Ï£ÍûÕâЩÄÚÈݶԸßһѧÉúÃÇÓÐËù°ïÖú£¬Äܹ»ÌáÉýËûÃǵÄѧϰ³É¼¨ºÍ½âÌâÄÜÁ¦¡£Í¬Ê±£¬Ò²Ï£Íû¹ã´óѧÉúÄܹ»ÈÏÕ汸¿¼£¬ÒÔÓÅÒìµÄ³É¼¨½øÈë×Ô¼ºÀíÏëµÄÃûУ¡£

¸ÐлÔĶÁ£¡

±êÇ©£º

¡ñ Ïà¹ØÍƼö¸ü¶à>>