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#1
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·¢ÐÅÕ¾: ÅúÌßÌßʵҵ (ptt.cc )
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1.the structure of a comet can be described in five distinguishable parts.list these five components in order of their physical size.
(ËûÊÇÒªÎʽṹÂð?ÕâÑùµÄ»°ÄǾÍÊǻۺË.»Û“¡õ»ÛβÂÞ?)
2.a particular star in a binary star system orbits the other in an elliptical orbit with a semi-major axis 3AU and a period of 5 years.what is the sum of the masses of the two stars in the system?

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2013/06/28 Fri 16:26:08
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Re: [ÎÊÌâ] ÌìÎÄѧÎÊÌâ
#2
Atropos
·¢ÐÅÕ¾: ÅúÌßÌßʵҵ (ptt.cc )
¡ù ÒýÊö¡¶glesses1991 (yo)¡·Ö®ÃúÑÔ£º
: ÕâÊÇʦ´óµØ¿Æϵתѧ¿¼ ÌìÎÄѧÕâÒ»¿ÆµÄ¿¼¹ÅÌâ
: ÓÐһЩÎÞ·¨ÔÚÍø·ÉÏÕÒµ½´ð°¸
: Ï£ÍûÓб³¾°ÖªÊ¶µÄÈË¿ÉÒÔ°ïæÌṩ´ð°¸»ò¼û½â :)Íò·Ö¸Ðл!
: 1.the structure of a comet can be described in five distinguishable parts.
: list these five components in order of their physical size.
: (ËûÊÇÒªÎʽṹÂð?ÕâÑùµÄ»°ÄǾÍÊǻۺË.»Û“¡õ»ÛβÂÞ?)
: 2.a particular star in a binary star system orbits the other in an elliptical
: orbit with a semi-major axis 3AU and a period of 5 years.what is the sum of
: the masses of the two stars in the system?

http://psroc.phys.ntu.edu.tw/bimonth/download.php?d=2&cpid=139&did=12
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: 3'ÍÖÔ²ÐÇϵµÄÖÊÁ¿Í¨³£´óì¶ÂÝÐýÐÇϵ,¶ø´óÖÊÁ¿ºãÐÇÒ²½ÏÈÝÒ×ÔÚÍÖÔ²ÐÇÏ·Öз¢ÏÖ'
: (1)ÒÔÉÏÍÖÔ²ÓëÂÝÐýÐÇϵµÄ±È½ÏÊÇ·ñÕýÈ·?(2)ÒÀ¾ÝÆä´ð°¸½âÊÍΪºÎÐÇϵµÄÐÎ×´»áºÍ
: 1.ÐÇϵµÄÖÊÁ¿ºÍ2.×é³ÉºãÐǵÄÖÊÁ¿ÓйØ(»òÎÞ¹Ø)
: (ÎҼǵÄÓÐÒ»¸öÀÏʦ˵ÕâÊÇÕýÈ·µÄ,µ«ÊÇÎÒ¾õµÃÓеãÆæ¹Ö ÒòΪºìÉ«Ò²¾ÍÊǽϰµµÄºãÐÇ
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2013/06/28 Fri 18:54:52
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