A. The temperature of the stars. B. The gravitational forces between the stars. C. The brightness of the stars. D. The age of the stars. 相关知识点: 试题来源: 解析 B。解析:在双星系统中,两颗恒星之间的引力决定了它们的轨道和速度。A 温度、C 亮度、D 年龄都与轨道和速度无关。
A. Its distance from other stars B. Its age C. Its mass D. The amount of dust around it 相关知识点: 试题来源: 解析 C。解析:The size and brightness of a main-sequence star depend on its mass.表明主序星的大小和亮度取决于它的质量。
What determines the mass of the most massive star cluster in?a?galaxy: statistics, physics or disruption?GielesM.ingentaconnectAstrophysics & Space Science Dordrecht
Yougaingreaterconfidenceinyourself.Also,youbecomemoreoptimisticandcalmerinthemindthanbefore.Thereareseveralreasonsforthesechanges:yourself-imageimprovesasyoustartlivingintidybeautifulrooms,andyougaindecision-makingskillsasyoucontinuetochoosebetweenwhichthingstothroworgiveawayandwhichtokeep.ThewayweletgoofthingsintheKo...
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Who or what determines the broad areas of life and information that must never enter the minds of people and therefore the consciousness of society? Where does this eventually lead us? And finally, is there a way to escape, a way to bring full transparency and therefore sanity back into the...
What makes the North Star, Polaris, special? Stars Stars are enormous masses of plasma that look tiny to us because they are so far away. Some stars and constellations are always visible in the night sky, while others can only be seen at certain times of the year. Answer and Explanation...
The nucleon-to-photon ratio determines how much of these elements we will wind up with in our Universe today. These measurements allow us to know the density of normal matter in the entire Universe very precisely. Credit: E. Siegel/Beyond the Galaxy But now, the fun can truly begin. ...
Determines access to resources and power Shapes attitudes, technology use, values 12 Variation Within Can vary in power, race, geographic location Varied class status, but similar experiences 5 Societal Role Static, slow to change Dynamic, often drives societal change 8 Compare with Definitions Class...