A. The speed of the planet. B. The size of the planet. C. The gravitational force between the sun and the planet. D. The color of the planet. 相关知识点: 试题来源: 解析 C。解析:太阳和行星之间的引力使行星保持在其轨道上。A 速度不是决定轨道的主要因素;B 行星大小无关;D 行星颜色更与...
解析 How long would it take for pluto to orbit the sun? 冥王星须要多久才可环绕太阳一周?Answer is: 答案是:Pluto takes 248 years to orbit the Sun.冥王星须要248年才能环绕太阳一周。因为它距离太阳59亿公里,而地球只距太阳1亿5千万公里。
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...
sconflictwithherson?A.Toleadintheuseofperiodintexting.B.Toemphasizethegreatpowerofwords.C.Toshowyoungsters?attitudestowardstexting.D.Tosuggesttherightuseofpunctuationmarks.( )6.WhyisJuanAbenanteRinconmentionedinthetext?A.Tomakeassessmentsontherecentstudy.B.Toconfirmthefindingsoftherecentstudy.C.Toputforwa...
Forget what you heard: Jupiter does not orbit the sunRafi Letzter
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. ...
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. ...
A solar eclipse is the outcome of the moon being perfectly alighted—a position called syzygy—between the sun and our beloved earth. Due to the massive distance between the moon and the sun, compared to orbit of our moon, as well as the sun-moon size differential, during this ra...
The majority of asteroids originate from the mainasteroid beltlocated between Mars and Jupiter,according to NASA.NASA's current asteroid count is over 1 million. Asteroids orbitthe sunin highly flattened, or "elliptical" circles, often rotating erratically, tumbling and falling through space. ...
Lunar eclipses can only happen when the moon is directly opposite to the sun in our Earthly sky at the time of the full moon. But we don't get a lunar eclipse every month — that is, at every full moon. The reason for this is simple: the moon's orbit is inclined to the Earth'...