What is the force that keeps the planets in orbit around the sun? A. Gravity B. Magnetic force C. Electrical force D. Friction 相关知识点: 试题来源: 解析 A。引力使行星围绕太阳运行。选项 B 磁力不是使行星围绕太阳运行的力。选项 C 电力不是使行星围绕太阳运行的力。选项 D 摩擦力不是使行星...
百度试题 结果1 题目What is the force that holds the planets in orbit around the sun? A. Gravity B. Magnetism C. Electricity D. Friction 相关知识点: 试题来源: 解析 A。引力是使行星围绕太阳运行的力。反馈 收藏
The Sun:The Sun is basically a huge ball of hot gases, mostly hydrogen and helium. A solar system is defined as a sun and any objects that orbit that sun. The word 'solar' refers to a sun.Answer and Explanation: In our solar system, there are numerous objects that orbit the Sun. ...
Also, this force is responsible for the circular motion of planets, satellites and other heavenly objects. The gravitational force was first explained by Issac Newton in 1665, which could help explain the pull that keeps us on the ground. His work was published in 1687 in a book named ...
Forget what you heard: Jupiter does not orbit the sunRafi Letzter
A. Asteroids are large gaseous bodies. B. Asteroids are stars. C. Asteroids are small rocky bodies that move around the sun. D. Asteroids are moons. 相关知识点: 试题来源: 解析 C。这句话的意思是小行星是围绕太阳运行的小岩石天体,答案是 C。A 选项表示小行星是大型气态天体;B 选项表示小行星...
beyondtomakeplaytimeakeypartoftheschoolday.Thismightinvolveusingnaturalobjectslike stonestodosums,orgoingonaninsecthunttoencouragecuriosity.Bynow,OutdoorClassroom Dayhasgrownfromagrassrootsmovementtoaglobalcampaignthatisexpectedtobenefitfive millionchildrenandover40,000schoolsfromallaroundtheworldin2018. Thisishelping...
Communications.Satellites extend the reach of ground-based communications systems that typically connect with a line-of-sight signal or wireline media such as copper orfiber opticcables. They also eliminate signal blockage by fixed objects on the ground, such as mountains and tall buildings. ...
time. It is not the same as solar time, so scientists have to mathematically convert their measurements to arrive at UT. Sidereal time reflects the period it takes Earth to complete a full rotation around its axisin relation to a fixed object outside of Earth's orbit around the Sun. ...
A galaxy is a large group of stars that orbit around a common point usually a Supermassive Black Hole. Some galaxies, such as the dwarf Galaxy called Segue 2, do not have a Supermassive Black Hole but rather orbit a central gravitational point. The word galaxy comes from the French ...