1¡¢ºÍÌïÓñ¡£Ö÷ÒªÊÇÓÉ͸ÉÁʯ¡¢ÑôÆðʯµÈ×é³ÉµÄ¿óÎOºÏÌ壬³ÊÏËά½»Ö¯½á¹¹£¬ÖʵØϸÄå¡¢ÖÂÃÜ¡£ÓÉÓÚÊÇÓÉϸСµÄÏËά½»Ö¯¶ø³É£¬Òò´ËÈÍÐÔ¼«ºÃ£¬²»Ò×ÆÆË飬¹â½ò×ÌÈ󣬳£³ÊÓÍÖ¬¸ÐµÄ²£Á§¹âÔó»òÓÍÖ¬¹âÔ󣬸øÈËÒÔÎÂÈóÖ®¸Ð¡£ºÍÌïÓñ°´Æ·ÖÖ¿ÉÒÔ·ÖΪÑòÖ¬°×Óñ¡¢°×Óñ¡¢ÇàÓñ¡¢Çà°×Óñ¡¢±ÌÓñ¡¢Ä«Óñ¡¢»ÆÓñ¡¢ÌÇÓñµÈ¡£ÑòÖ¬°×ÓñÖʵØϸÄ壬¹âÔóÇ¿£¬½à°×ÈçÑòÖ¬£¬¿°³ÆΪ¡°ÈíÓñÖ®Íõ¡±¡£ 2¡¢À¥ÂØÓñ¡£À¥ÂØÓñʯ³Ê½á¾§ÎÆ×´ºÍ±èÎÆ×´£¬ÎÆÀíϸÄå¶ÀÌØ£¬É«ÔóÃÀÀö·á¸»£¬Í¼°¸¶àÑù£¬²ÄÖÊÈá¶øÒ×¹¥¡£À¥ÂØÓñµÄÖÖÀà·Ö°×Óñ¡¢»ÒÓñ¡¢ÇàÓñ¡¢°×´øÂÌ¡¢ÌÇ°ü°×µÈ£¬ÓñÖÊÒÔ¾§Ó¨Ô²Èó¡¢´¿½àÎÞϾ¡¢ÎÞÁÑÎÆ¡¢ÎÞÔÓÖʵÄΪÉÏÆ·¡£À¥ÂØÓñÊôÓÚÖеµÓñʯ£¬Ò»°ãÓÃÁ¿½Ï´ó£¬ÎªÓñʯƷÖÖÖв»¿ÉȱÉÙµÄÔÁÏ¡£À¥ÂØÓñÖеİ×ÓñÔÚ½ü¼¸ÄêÖ鱦Êг¡µÍÃÔµÄÄæ¾³Öм۸ñһ·ÉÏÕÇ£¬½ü¼¸ÄêÄêÀ´ÕÇ·ù´ïµ½½Ï¸ß£¬¾ßÓкܸߵÄͶ×Ê¡¢ÊղؼÛÖµ¡£ |
Ïà¹Ø×ÊѶ
- ɽҩÅŹÇÖàµÄ×ö·¨ Ôõô×öɽҩÅŹÇÖà
- 1¡¢²ÄÁÏ£ºÉ½Ò©¡¢ÅŹǡ¢´óÃס¢ÑΡ¢´Ð»¨¡¢½ªÆ¬¡¢Ð»á³ÂƤ¡£ 2¡¢ÅŹÇÊÂÏÈÓÃÑÎëçÒ»ÍíÉÏ£¬µÚ¶þÌìÓÃʱºÍ½ªÆ¬Ò»ÆðÀäˮϹøìÌѪˮ£¬ÔÙ¹ýÇåˮϴ¾»±¸Óᣠ3¡¢É½Ò©È¥Æ¤ÇÐÊÊÁ¿´óÐ £ 4¡¢´óÃ×ÌÔϴһϡ£ 5¡¢¼ÓÈëÊÊÁ¿ÇåË®ºÍһС¿é
- ÄÄЩÒûÁÏÊôÓÚÆûË®Àà ÊôÓÚÆûË®µÄÊÇʲôÒûÁÏ
- 1¡¢¿É¿Ú¿ÉÀÖ¡£1886Ä꣬¿É¿Ú¿ÉÀÖÔÚÃÀ¹úÇÇÖÎÑÇÖÝÑÇÌØÀ¼´óÊе®Éú£¬Ä¿Ç°£¬È«ÇòÿÌìÓÐ17ÒÚÈ˴εÄÏû·ÑÕßÔÚ³©Òû¿É¿Ú¿ÉÀÖ¹«Ë¾µÄ²úÆ·£¬´óԼÿÃëÖÓÊÛ³ö19,400Æ¿ÒûÁÏ£¬ÊÇÊÀ½çÉÏ×ÏúµÄÒûÁÏ£¬ÊôÓÚ̼ËáÒûÁÏ£¬ÊÇÆûË®ÀàÒûÁÏ¡£2¡¢·Ò
- Ô簲ůÐÄ»°¼òµ¥Ò»¾ä»° Å̵ãÔ簲ůÐľä×Ó
- ÎÞÐëÃ廳×òÌ죬²»±ØÉÝÍûÃ÷Ì죬ֻҪÈÏÕæ¹ýºÃÿ¸ö½ñÌ죬˵ÄÜ˵µÄ»°£¬×ö¿É×öµÄÊ£¬×߸Ã×ߵķ£¬¼ûÏë¼ûµÄÈË¡£×£Äã½ñÌìÓиöºÃÐÄÇ飬Ôç°²¡£ ¶øÊDz»Ïë¹¼¸º×Ô¼º£¬¸ü²»Ïë¹¼¸º´ËÉú£¬ÎªÃ¿ÌìŬÁ¦·Ü¶·µÄ×Ô¼ºµã¸öÔÞ£¡Ôç°²£¡ ŬÁ¦×¬
- ʯÀÖÔõô¶Á ʯÀÖÈçºÎ¶Á
- 1¡¢Àù¶Á×÷£º¡¾l¨¬¡¿ 2¡¢ÊÇÒ»¸öººÓï´Ê»ã£¬ººÓïÆ´ÒôÊÇl¨¬£¬×ܱʻÊÇ10±Ê¡£ÀùÊÇÐÎÉù×Ö£¬Ê¯ÎªÐΣ¬ÀÖΪÉù¡£ÀùµÄ»ù±¾Òâ˼ÊÇСʯ£¬Ëéʯ¡£¿É×é´ÊΪÀùʯ¡£ 3¡¢Ëéʯ×Ó£¬Ð¡Ê¯¿é[gravel]ÓÖÈ磺Àùʯ£»ÀùÖÞ£¨É³ÖÞ£©£»Àù¬L£¨ËéʯÓë
- ¸ôÒ¹µÄСÁúϺ¼ÓÈÈ¿ÉÒÔ³ÔÂð ʳÓøôÒ¹µÄСÁúϺµÄ×¢ÒâÊÂÏî
- 1¡¢Ã»ÓбäÖʵĻ°¿ÉÒÔÊÊÁ¿Ê³Óá£2¡¢ÁúϺÖк¬ÓзḻµÄµ°°×ÖÊ¡¢Ì¼Ë®»¯ºÏÎάÉúËØ¡¢¿óÎïÖʵȶàÖÖÓªÑø³É·Ö£¬ºÜÈÝÒ×±»Î¢ÉúÎïºÍϸ¾úÎÛȾ£¬Èç¹ûÊÇÖÃÓÚ±ùÏäÖб£´æµÄ»°£¬±ùÏäµÄµÍÎÂÌõ¼þ¿ÉÒÔÒÖÖÆϸ¾úµÄÉú³¤·±Ö³£¬ÑÓ³¤ÁúϺµÄ±£
- ʲôÊÇÔÈËÙÔ²ÖÜÔ˶¯ ¹ØÓÚÔÈËÙÔ²ÖÜÔ˶¯
- 1¡¢ÖʵãÑØÔ²ÖÜÔ˶¯£¬Èç¹ûÔÚÈÎÒâÏàµÈµÄʱ¼äÀïͨ¹ýµÄÔ²»¡³¤¶È¶¼ÏàµÈ£¬ÕâÖÖÔ˶¯¾Í½Ð×ö¡°ÔÈËÙÔ²ÖÜÔ˶¯¡±(uniform circular motion)¡£ 2¡¢ÔÈËÙÔ²ÖÜÔ˶¯ÊÇÔ²ÖÜÔ˶¯ÖУ¬×î³£¼ûºÍ×î¼òµ¥µÄÔ˶¯£¨ÒòΪËÙ¶ÈÊÇʸÁ¿£¬ËùÒÔÔÈËÙÔ²