KIRTLAND AIR FORCE BASE, N.M.--Building a small satellite in the future could be as simple as ordering a personal computer today. At least, that's what Air Force Research Laboratory's scientists are trying to achieve. They are experimenting with a "plug -and-play" concept that will ...
A satellite is best understood as an object that has only one force acting on it gravity. Technically speaking, anything that crosses the Karman Line at an altitude of 100km is considered a satellite in space. However, a satellite needs to be going fast at least 8km a second to avoid fa...
百度试题 结果1 题目6. A satellite was sent into space by the mighty(巨大的) force from that giant rocket. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
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A satellite is orbiting the Earth. What force keeps it in orbit? A. Frictional force B. Magnetic force C. Gravitational force D. Nuclear force 相关知识点: 试题来源: 解析 C。解析:卫星绕地球运行是因为地球对卫星的万有引力提供了向心力,使其能够在轨道上运行。A选项,太空中卫星几乎不受摩擦力;...
A satellite orbiting the Earth experiences a gravitational force of 5000 N. If its distance from the Earth doubles, what will be the new gravitational force? A. 1250 N B. 2500 N C. 1000 N D. 2000 N 相关知识点: 试题来源: 解析 A。根据万有引力定律,引力与距离的平方成反比。距离变为...
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A country’s first orbital satellite launch from home soil is a proud moment, even when as is the case with Virgin Orbit, it’s not from the soil itself but from a Boeing 747 in the stratosphere over the sea. The first launch of the under-wing rocket took place yesterday evening, and...
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