ÈçÓÒͼËùʾ£¬Í¼Ðΰ¼²Û°ë¾¶R=30cm£¬ÖÊÁ¿m=1kgµÄСÎï¿éÔÚÑذ뾶·½ÏòµÄÇᵯ»É¼·Ñ¹Ï´¦ÓÚ¾²Ö¹×´Ì¬¡£ÒÑÖªµ¯»ÉµÄ¾¢¶ÈϵÊýk=50N/m£¬×ÔÓɳ¤¶ÈL=40cm£¬Ò»¶Ë¹Ì¶¨ÔÚÔ²ÐÄO´¦£¬µ¯»ÉÓëÊúÖ±·½ÏòµÄ¼Ð½ÇΪ37¡ã¡£È¡g=10m/s2£¬sin37¡ã=0.6£¬cos37¡ã=0.8¡£Ôò
A£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ15N | B£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ13N |
C£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ6N | D£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ8N |
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¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º
ÈçÓÒͼËùʾ£¬Í¼Ðΰ¼²Û°ë¾¶R=30cm£¬ÖÊÁ¿m=1kgµÄСÎï¿éÔÚÑذ뾶·½ÏòµÄÇᵯ»É¼·Ñ¹Ï´¦ÓÚ¾²Ö¹×´Ì¬¡£ÒÑÖªµ¯»ÉµÄ¾¢¶ÈϵÊýk=50N/m£¬×ÔÓɳ¤¶ÈL=40cm£¬Ò»¶Ë¹Ì¶¨ÔÚÔ²ÐÄO´¦£¬µ¯»ÉÓëÊúÖ±·½ÏòµÄ¼Ð½ÇΪ37¡ã¡£È¡g=10m/s2£¬sin37¡ã=0.6£¬cos37¡ã=0.8¡£Ôò £¨ £©
A£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ15N
B£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ13N
C£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ6N
D£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ8N
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£ºÈ˽̰æ¸ßÈýÎïÀí¶þÂÖ¸´Ï°×¨ÌâѵÁ·2 ÌâÐÍ£ºÑ¡ÔñÌâ
ÈçÓÒͼËùʾ£¬Í¼Ðΰ¼²Û°ë¾¶R=30cm£¬ÖÊÁ¿m=1kgµÄСÎï¿éÔÚÑذ뾶·½ÏòµÄÇᵯ»É¼·Ñ¹Ï´¦ÓÚ¾²Ö¹×´Ì¬¡£ÒÑÖªµ¯»ÉµÄ¾¢¶ÈϵÊýk=50N/m£¬×ÔÓɳ¤¶ÈL=40cm£¬Ò»¶Ë¹Ì¶¨ÔÚÔ²ÐÄO´¦£¬µ¯»ÉÓëÊúÖ±·½ÏòµÄ¼Ð½ÇΪ37¡ã¡£È¡g=10m/s2£¬sin37¡ã=0.6£¬cos37¡ã=0.8¡£Ôò £¨ £©
A£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ15N
B£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ13N
C£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ6N
D£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ8N
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2014½ì¶Èºþ±±Ê¡ËÉ×ÌÊиßÒ»ÉÏѧÆÚÆÚÄ©¿¼ÊÔÎïÀí¾í ÌâÐÍ£ºÑ¡ÔñÌâ
ÈçÓÒͼËùʾ£¬Í¼Ðΰ¼²Û°ë¾¶R=30cm£¬ÖÊÁ¿m=1kgµÄСÎï¿éÔÚÑذ뾶·½ÏòµÄÇᵯ»É¼·Ñ¹Ï´¦ÓÚ¾²Ö¹×´Ì¬¡£ÒÑÖªµ¯»ÉµÄ¾¢¶ÈϵÊýk=50N/m£¬×ÔÓɳ¤¶ÈL=40cm£¬Ò»¶Ë¹Ì¶¨ÔÚÔ²ÐÄO´¦£¬µ¯»ÉÓëÊúÖ±·½ÏòµÄ¼Ð½ÇΪ37¡ã¡£È¡g=10m/s2£¬sin37¡ã=0.6£¬cos37¡ã=0.8¡£Ôò
A£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ15N B£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ13N
C£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ6N D£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ8N
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£ºÈ˽̰æ¸ßÈýÎïÀí¶þÂÖ¸´Ï°×¨ÌâѵÁ·2 ÌâÐÍ£ºµ¥Ñ¡Ìâ
ÈçÓÒͼËùʾ£¬Í¼Ðΰ¼²Û°ë¾¶R=30cm£¬ÖÊÁ¿m=1kgµÄСÎï¿éÔÚÑذ뾶·½ÏòµÄÇᵯ»É¼·Ñ¹Ï´¦ÓÚ¾²Ö¹×´Ì¬¡£ÒÑÖªµ¯»ÉµÄ¾¢¶ÈϵÊýk=50N/m£¬×ÔÓɳ¤¶ÈL=40cm£¬Ò»¶Ë¹Ì¶¨ÔÚÔ²ÐÄO´¦£¬µ¯»ÉÓëÊúÖ±·½ÏòµÄ¼Ð½ÇΪ37¡ã¡£È¡g=10m/s2£¬sin37¡ã=0.6£¬cos37¡ã=0.8¡£Ôò £¨ £©
A£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ15N |
B£®Îï¿é¶Ô²ÛµÄѹÁ¦´óСÊÇ13N |
C£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ6N |
D£®²Û¶ÔÎï¿éµÄĦ²ÁÁ¦´óСÊÇ8N |
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