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Questions regarding an object or spacecraft rotating around an axis.

3 votes

In what circumstance would it be useful for a satellite’s angular velocity to differ from it...

Obviously this depends on the purpose of the satellite. If the satellite is a space telescope, it needs to focus on distant stars; $\omega = 0$. If it's a spy satellite focusing on a specific point on …
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5 votes
Accepted

Could the Galilean moons tidally lock Jupiter?

Every action is accompanied by equal and opposite reaction. Specifically, the braking of spin of a planet due to tidal forces exerted by a moon is accompanied by the planet's tidal bulging accelerati …
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4 votes

How to calculate the speed of rotation of a given point on the Earth's WGS84 ellipsoid, abou...

Linear speed in circular motion depends on angular velocity (here: 1 rotation per day, for all latitudes) and radius of the circle - distance from the axis of rotation. …
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