We define in physics the four fundamental forces which are the weak force, strong force, electromagnetic force, and the gravitational force. The gravitational force is the force of attraction between all masses on earth. This means that any objects are attracting each other because of the ...
A. their size B. their weight C. their distance to Earth D. the depth of the oceans 相关知识点: 试题来源: 解析 C 正确答案:C 解析:根据文章第四段中的第二句“Although the Sun is larger than the Moon.The Moon is closerto Earth and,therefore,its gravitational force is approximately 2.2...
The gravitational force of the Sun and the Moon upon Earth depends on ___. A. their distance to Earth B. their size C. their weight D. the depth of the oceans 相关知识点: 试题来源: 解析 A 答案:A 解析:分析第三段可知,太阳和月亮对地球的引力与其地球的距离有关。反馈...
This chapter considers the gravitational field of the earth. The chapter mentions the forces acting on elementary volume of the rotating Earth in an inertial frame and considers the second Newton's law in non-inertial system. It introduces the centrifugal force and gravitational field, as well as...
Answer to: What would the Sun's gravitational force on the Earth be if the Earth had twice its present mass? Would the Earth's acceleration change?...
If you weigh 90 pounds,you ___ to the earth by a gravitational force of 90 pounds.A.have pulled B.pull down C.are being pulled D.have been pulled(7.21) 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 If you weigh 90 pounds, you ___ to the earth by a gravitat...
The gravitational field at a point in space equals the gravitational force experienced by a test particle placed at that point divided by the mass of the test particle. Note that the presence of the test particle is not necessary for the filed to exist -- the Earth creates the gravitational...
Journal of the Franklin InstituteWilson, Raymond H., Jr.: A Gravitational Force Function for the Earth Repre- senting All Deviations From a Spherical Geoid. Franklin Inst. Jour.. ,. vol. 268, no. 5,. Nov. 1959, pp. 378-387.
There are four fundamental forces in nature - gravitational, electromagnetic, strong and weak nuclear forces. Strong nuclear force is the strongest fundamental force while gravitational force is the weakest fundamental force.
The gravitational force is determined by the magnitude of the mass of the body in consideration times the constant value of gravity of Earth. Mathe... Learn more about this topic: Gravity Definition & Equation from Chapter 19/ Lesson 10 ...