gravitational

相关推荐

• 英语翻译The gravitational force that acts on a 1200 kg space probe on the surface of Mars is4.43 × 103 N.The radius of Mars is 3400 km.Without using the mass of Mars,determine thegravitational force that acts on the space probe when it is:a 3400 km above the surface of Marsb 6800 km above the surface of Mars.
• 求万有引力的平衡距离一个目标物放在一个星球和月亮之间,星球的质量为M 月亮质量为m,星球和月亮的距离为R,目标物在之间的net gravitational force为零,求目标物和星球间的距离
• The rise and fall of the tide is caused by the gravitational pull of the___________.
• 请帮我分析一下这句话的句子结构,主谓宾等moon is kept tied to the earth by the earth's gravitational pull.这句话是不是被动语态?如果是为什么会有两个动词,kept和tied我都晕了
• A 0.60-kg basketball is dropped out of a window that is 6.1m above the ground.The ball is caught by person whose hands are 1.5m above the ground.A)How much work is done on the ball by its weight?What is the gravitational potential energy of the basketball,relative to the ground,when it is B)Released andC)Caught?D)How is the change (Final PE – initial PE) in the ball’s gravitational potential energy related to the work done by its weight?在work and ener
• 求英文翻译,An object with a weight of 20N is placed on an incline.The ratio of the length to the height of the incline is 5:3.Resolve the gravitational force to find the component parallel to the incline that makes the object slip down and the component perpendicular to the incline which makes the block press against the incline.
• SAT物理题The Earth has radius of 6400 kilometers. A satellite orbits the Earth at a distance of 12800kilometers from the center of the Earth. If the weight of the satellite on Earth is 100 kilonewtons, the gravitational force on the satellite in orbit is A 11 kilonewtons B 25kilonewtons C 50kilonewtons D 100kilonewtons E 200kilonewtons
• gravitational
• gravitational
• 英语翻译However,a decade of study has not turned up any obvious flaws in the basic theory.As a result,scientists now suspect that the “hot Jupiters” were indeed born with circular orbits far from their stars and that those that now have close-in or highly elliptical orbits underwent some sort of “planetary migration” or suffered gravitational interactions with other massive objects.
• 千A万B形去的词语
• .有“欧洲的良心”之称的作家是（）