What is gravitational force? A. The force that repels objects. B. The force that makes objects transparent. C. The force that attracts objects towards each other. D. The force that makes objects glow. 相关知识点: 试题来源: 解析 C。解析:文章明确指出重力是吸引物体相互靠近的力。A 选项排斥...
Yougaingreaterconfidenceinyourself.Also,youbecomemoreoptimisticandcalmerinthemindthanbefore.Thereareseveralreasonsforthesechanges:yourself-imageimprovesasyoustartlivingintidybeautifulrooms,andyougaindecision-makingskillsasyoucontinuetochoosebetweenwhichthingstothroworgiveawayandwhichtokeep.ThewayweletgoofthingsintheKo...
We have all experienced the force of gravity. It is what happens to you when you jump up into the air. Disappointingly, we tend to fall right back down to the ground. But what if we could switch gravity off? What will happen if the gravity vanishes? Buckey, an astronomer, says that...
To help visualize what is meant by a gravitational field we may use lines of force.下划线部分在句中做 ___。 A. 主语 B. 宾语 C. 状语 D. 定语 相关知识点: 试题来源: 解析 C 解析:“it”为动词“make”的宾语,“easier”为宾语补足语,“for us to take derivatives”为不定式复杂结构,作真正...
Due to this gravitational force, the earth pulls any object towards its surface. Therefore, the direction of the weight of the object is towards the earth's center. Weight is a vector quantity.The weight of an object varies from place to place:...
F is the gravitational force. G is the universal gravitational constant. m1is the first body's mass. m2is the second body's mass. r is the distance between the two bodies. Therefore, the gravitational force seems to be the universal attractive force that exists across all stuff....
and they’re pulling on you. The more mass something has, the stronger its gravitational pull. The farther away the object, the lower its pull. If every mass has an effect on every other mass in the universe, no matter how small, then ch...
Weight is the gravitational pull on an object. If somehow the pull of gravitation changes then the weight of the object changes. The mass of the object the amount( 数量 )of matter it is made of does not change. If a bag of sugar weighs 6 kilograms on earth what will it weigh 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
Gravitational force surrounds us. It is what decides how much we weigh and how far a basketball will travel when thrown before it returns to the surface. The gravitational force on Earth is equal to the force the Earth exerts on you. At rest, on or near the surface of the Earth, the ...