百度试题 结果1 题目What is the acceleration due to gravity on Earth? A. 9.8 m/s² B. 10 m/s² C. 8 m/s² D. 7 m/s² 相关知识点: 试题来源: 解析 A 反馈 收藏
What is the speed of gravity on Earth?Gravity:Gravity is a physical phenomenom which consists of a force that pulls one body toward another body. This force will be proportional to the product of the masses and inversely proportional to the squared distance of the bodies. Gravity was ...
The Earth is moving at quite a speed, moving at over a thousand miles per hour. If you turn something around your head on a string(细绳), it goes around in a circle until you let go of the string. Then it flies off in a straight line. ‘Switching off’ gravity would be like ...
The force exerted by the object can be calculated as the product of the mass and the acceleration due to gravity. Answer and Explanation: We are given the following data: The given mass is m=65kg. The expression for the force of gravity exerted by me on ...
physic物理问题英文6A.calculate the force of gravity on a 65-kg person in the following:a.at the surface of the Earth (R=6400km)b.at twice the Earth's radiusc.at four times the Earth's radiusB.Plot this gravitational force with distance.What pat
Load, on the other hand, is often the result of a force, such as gravity, and is typically measured as a weight. 13 When an engineer designs a building, they calculate loads, which are the forces a structure must support. These loads include the weight of the structure itself, known ...
Supposingwecouldmagicallyturnoffgravity.Wouldbuildingsandotherstructures(筑物)floataway?WhathappenedwoulddependonhowstronglythethingswereattachedtotheEarth.TheEarthismovingatquiteaspeed,movingatoverathousandmilesperhour.Ifyouturnsomethingaroundyourheadonastring(细绳),itgoesaroundinacircleuntilyouletgoofthestring.Then...
Newton's Second Law can be written in equation form: F = ma. For falling objects we can write F=mg where g is the acceleration due to gravity. The force of gravity is what causes free falling objects to accelerate. These objects all accelerate at the same rate of 9.8 meters/sec^2 ...
In fact the intensity of the gravity field (the force acting on the unit mass) with the unit N/kg is the generally needed quantity instead of the acceleration. Its use will be suggested also in geodesy and proper units in the SI system will be recommended for gravity potential, ...
the center of the Earth. In the absence of any other forces, it can be described using the Newtonian relationship _Fnet= ma, where Fnet is the force of gravity in Newtons (N), m is mass in kilograms (kg) and a_ is acceleration due to gravity in m/s2...