ijͬѧÀûÓÃÍÐÅÌÌìƽ¡¢²£Á§±­¡¢Ë®¡¢Ï¸ÃÞÏß¡¢¼ÇºÅ±Ê£¬²â³öÒ»¿éСʯ¿éµÄÃܶȣ¬ËûÖ÷ҪʵÑé²½ÖèÈçÏ£º
£¨1£©Óõ÷ºÃµÄÌìƽ²â³öʯ¿éµÄÖÊÁ¿m1£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨2£©ÔÚ²£Á§±­Öе¹ÈëÊÊÁ¿Ë®£¬ÓÃϸÃÞÏßϵסʯ¿é»ºÂýµØ______ÔÚË®ÖУ¬±ê¼Ç´ËʱˮÃæµÄλÖã¬ÓÃÌìƽ²â³ö²£Á§±­¡¢Ë®ºÍʯ¿éµÄ×ÜÖÊÁ¿Îªm2£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨3£©È¡³öʯ¿é£¬ÔÙÏò²£Á§±­ÖмÓË®£¬Ê¹Ë®Ãæ»Øµ½±ê¼ÇµÄλÖã¬È»ºóÔÙÓÃÌìƽ²â³ö²£Á§±­ºÍË®µÄÖÊÁ¿m3£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨4£©Ê¯¿éµÄÃܶȵıí´ïʽΪ¦Ñʯ=______£®

£¨1£©Óõ÷ºÃµÄÌìƽ²â³öʯ¿éµÄÖÊÁ¿m1£¬
£¨2£©ÔÚ²£Á§±­Öе¹ÈëÊÊÁ¿Ë®£¬ÓÃϸÃÞÏßϵסʯ¿é»ºÂýµØ½þûÔÚË®ÖУ¬±ê¼Ç´ËʱˮÃæµÄλÖã¬ÓÃÌìƽ²â³ö²£Á§±­¡¢Ë®ºÍʯ¿éµÄ×ÜÖÊÁ¿Îªm2£»
£¨3£©È¡³öʯ¿é£¬ÔÙÏò²£Á§±­ÖмÓË®£¬Ê¹Ë®Ãæ»Øµ½±ê¼ÇµÄλÖã¬È»ºóÔÙÓÃÌìƽ²â³ö²£Á§±­ºÍË®µÄÖÊÁ¿m3£¬
£¨4£©Ô­À´Ë®ºÍ²£Á§±­µÄÖÊÁ¿£ºm0=m2-m1£¬
Ìí¼ÓË®µÄÖÊÁ¿£º
m¼Ó=m3-m0=m3-m2+m1=m1+m3-m2£¬
¡àV¼Ó=
m¼Ó
¦ÑË®
=
m1+m3-m2
¦ÑË®
£¬
¡ßV¼Ó=Vʯ
¡àVʯ=
m1+m3-m2
¦ÑË®
£¬
¡à¦Ñʯ=
m
v
=
m1
m1+m3-m2
¦ÑË®
=
m1
m1+m3-m2
¦ÑË®£®
¹Ê´ð°¸Îª£º£¨2£©½þû£»£¨4£©
m1
m1+m3-m2
¦ÑË®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijͬѧÀûÓÃÍÐÅÌÌìƽ¡¢²£Á§±­¡¢Ë®¡¢Ï¸ÃÞÏß¡¢¼ÇºÅ±Ê£¬²â³öÒ»¿éСʯ¿éµÄÃܶȣ¬ËûÖ÷ҪʵÑé²½ÖèÈçÏ£º
£¨1£©Óõ÷ºÃµÄÌìƽ²â³öʯ¿éµÄÖÊÁ¿m1£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨2£©ÔÚ²£Á§±­Öе¹ÈëÊÊÁ¿Ë®£¬ÓÃϸÃÞÏßϵסʯ¿é»ºÂýµØ
½þû
½þû
ÔÚË®ÖУ¬±ê¼Ç´ËʱˮÃæµÄλÖã¬ÓÃÌìƽ²â³ö²£Á§±­¡¢Ë®ºÍʯ¿éµÄ×ÜÖÊÁ¿Îªm2£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨3£©È¡³öʯ¿é£¬ÔÙÏò²£Á§±­ÖмÓË®£¬Ê¹Ë®Ãæ»Øµ½±ê¼ÇµÄλÖã¬È»ºóÔÙÓÃÌìƽ²â³ö²£Á§±­ºÍË®µÄÖÊÁ¿m3£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨4£©Ê¯¿éµÄÃܶȵıí´ïʽΪ¦Ñʯ=
m1
m1+m3-m2
¦ÑË®
m1
m1+m3-m2
¦ÑË®
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijͬѧÀûÓÃÍÐÅÌÌìƽ¡¢²£Á§±­¡¢Ë®¡¢Ï¸ÃÞÏߣ¬²â³öÒ»¿éСʯ¿éµÄÃܶȣ¬ËûÖ÷ҪʵÑé²½ÖèÈçÏ£º
£¨1£©ÓÃÌìƽ²â³öʯ¿éµÄÖÊÁ¿m1£®
£¨2£©ÓÃÌìƽ²â³ö²£Á§±­×°ÂúË®ºóµÄ×ÜÖÊÁ¿Îªm2£®
£¨3£©ÓÃϸÃÞÏßϵסʯ¿é·ÅÈë±­ÖÐÅųöÒ»¶¨Á¿µÄË®£¬È»ºóÌá³öʯ¿é²â³öÊ£ÓàË®ºÍ±­µÄÖÊÁ¿Îªm3£®
£¨4£©Ê¯¿éµÄÃܶÈΪ¦Ñʯ=
m1¦ÑË®
m3-m2
m1¦ÑË®
m3-m2
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2·Ö£©Ä³Í¬Ñ§ÀûÓÃÍÐÅÌÌìƽ¡¢²£Á§±­¡¢Ë®¡¢Ï¸ÃÞÏß¡¢¼ÇºÅ±Ê£¬²â³öÒ»¿éСʯ¿éµÄÃܶȣ¬ËûÖ÷ҪʵÑé²½ÖèÈçÏ£º
£¨1£©Óõ÷ºÃµÄÌìƽ²â³öʯ¿éµÄÖÊÁ¿m1£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨2£©ÔÚ²£Á§±­Öе¹ÈëÊÊÁ¿Ë®£¬ÓÃϸÃÞÏßϵסʯ¿é»ºÂýµØ        ÔÚË®ÖУ¬±ê¼Ç´ËʱˮÃæµÄλÖã¬ÓÃÌìƽ²â³ö²£Á§±­¡¢Ë®ºÍʯ¿éµÄ×ÜÖÊÁ¿Îªm2£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨3£©È¡³öʯ¿é£¬ÔÙÏò²£Á§±­ÖмÓË®£¬Ê¹Ë®Ãæ»Øµ½±ê¼ÇµÄλÖã¬È»ºóÔÙÓÃÌìƽ²â³ö²£Á§±­ºÍË®µÄÖÊÁ¿m3£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨4£©Ê¯¿éµÄÃܶȵıí´ïʽΪ¦Ñʯ =                ¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2010-2011Äê±±¾©ÊÐÒ»Îå¾ÅÖÐѧ°ËÄ꼶ÏÂѧÆÚÔ¿¼ÎïÀí¾í ÌâÐÍ£ºÊµÑéÌâ

£¨2·Ö£©Ä³Í¬Ñ§ÀûÓÃÍÐÅÌÌìƽ¡¢²£Á§±­¡¢Ë®¡¢Ï¸ÃÞÏß¡¢¼ÇºÅ±Ê£¬²â³öÒ»¿éСʯ¿éµÄÃܶȣ¬ËûÖ÷ҪʵÑé²½ÖèÈçÏ£º
£¨1£©Óõ÷ºÃµÄÌìƽ²â³öʯ¿éµÄÖÊÁ¿m1£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨2£©ÔÚ²£Á§±­Öе¹ÈëÊÊÁ¿Ë®£¬ÓÃϸÃÞÏßϵסʯ¿é»ºÂýµØ        ÔÚË®ÖУ¬±ê¼Ç´ËʱˮÃæµÄλÖã¬ÓÃÌìƽ²â³ö²£Á§±­¡¢Ë®ºÍʯ¿éµÄ×ÜÖÊÁ¿Îªm2£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨3£©È¡³öʯ¿é£¬ÔÙÏò²£Á§±­ÖмÓË®£¬Ê¹Ë®Ãæ»Øµ½±ê¼ÇµÄλÖã¬È»ºóÔÙÓÃÌìƽ²â³ö²£Á§±­ºÍË®µÄÖÊÁ¿m3£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»
£¨4£©Ê¯¿éµÄÃܶȵıí´ïʽΪ¦Ñʯ =                ¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2010-2011Äê±±¾©ÊаËÄ꼶ÏÂѧÆÚÔ¿¼ÎïÀí¾í ÌâÐÍ£ºÊµÑéÌâ

£¨2·Ö£©Ä³Í¬Ñ§ÀûÓÃÍÐÅÌÌìƽ¡¢²£Á§±­¡¢Ë®¡¢Ï¸ÃÞÏß¡¢¼ÇºÅ±Ê£¬²â³öÒ»¿éСʯ¿éµÄÃܶȣ¬ËûÖ÷ҪʵÑé²½ÖèÈçÏ£º

£¨1£©Óõ÷ºÃµÄÌìƽ²â³öʯ¿éµÄÖÊÁ¿m1£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»

£¨2£©ÔÚ²£Á§±­Öе¹ÈëÊÊÁ¿Ë®£¬ÓÃϸÃÞÏßϵסʯ¿é»ºÂýµØ         ÔÚË®ÖУ¬±ê¼Ç´ËʱˮÃæµÄλÖã¬ÓÃÌìƽ²â³ö²£Á§±­¡¢Ë®ºÍʯ¿éµÄ×ÜÖÊÁ¿Îªm2£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»

£¨3£©È¡³öʯ¿é£¬ÔÙÏò²£Á§±­ÖмÓË®£¬Ê¹Ë®Ãæ»Øµ½±ê¼ÇµÄλÖã¬È»ºóÔÙÓÃÌìƽ²â³ö²£Á§±­ºÍË®µÄÖÊÁ¿m3£¬²¢¼Ç¼ÔÚ±í¸ñÄÚ£»

£¨4£©Ê¯¿éµÄÃܶȵıí´ïʽΪ¦Ñʯ =                 ¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸