百度试题 结果1 题目The planets move around the Sun ___ elliptical orbits. A. in B. on C. at D. with 相关知识点: 试题来源: 解析 A。“在……轨道上”用“in...orbits”。反馈 收藏
† The figures given here assume that the planets have perfectly circular orbits, when in fact they are slightly elliptical, so that the planets speed up and slow down slightly during the course of their orbit. The figures should therefore be taken only as a general guide when making rough...
Astronomers have found that some planets ___ around their stars in very elliptical orbits. A. 全他江些是引有使十圆江近半全他江些是引有使十圆江近半revolve全他江些是引有使十圆江近半全他江些是引有使十圆江近半 B. 她命油新她命油新rotate她命油新她命油新 C. 红国群极十太红国群极...
The sentence containing our keywords tells us that it is likely also true that planets have this same relationship that forces them into “disturbed, elliptical orbits.” The following sentence elaborates, telling us that when this happens, one planet is flung “inward,” which is defined as ...
only the law of inertia C. only the gravitational force D. magnetic force 相关知识点: 试题来源: 解析 A。原因:文章提到 The planets in our solar system move in elliptical orbits around the sun because of the balance between the gravitational force and their inertia....
Most planets have orbits with very low eccentricity, close to zero. Their orbits are very nearly circular. Venus has the most circular orbit. The least circular orbits is that of Mercury. The Kuiper Belt object, Pluto, has an orbit so elliptical that it sometimes moves closer to the Sun ...
Asteroids typically have highly-elliptical orbits and their orbital inclinations often carry them well outside the narrow band of the ecliptic occupied by the major planets. Of the four brightest asteroids - namely Vesta, Ceres, Pallas and Iris - only Vesta becomes bright enough to be glimpsed ...
The planets travel around the Sun in approximately elliptical orbits with the Sun at one focus, as shown below. (1)Show that the polar equation of the planets orbit can be written as r=(a(1-^2))((1-θ )). (2)Prove that the perihelion distance of any planet is a(1-), and the...
" you may ask. The reason is that the app has a slider control which changes the orbits of the planets from a diagrammatical view (i.e. all the planets in nice neat, equally separated, circular orbits) to a real view (i.e. all the planets in elliptical orbits with all the inner ...
Astronomy - Solar System, Planets, Stars: The solar system took shape 4.57 billion years ago, when it condensed within a large cloud of gas and dust. Gravitational attraction holds the planets in their elliptical orbits around the Sun. In addition to Ear