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29 April, 07:08

The Hubble Space Telescope (HST) orbits 569 km above Earth's surface. Given that Earth's mass is 5.97 * 1024 kg and its radius is 6.38 * 106 m, what is HST's tangential speed?

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  1. 29 April, 07:12
    0
    The tangential velocity or speed is a linear speed of a an object moving in a circular motion. Tangential velocity is synonymous to linear speed however in this situation the object is moving on a circular path. It would have units of meters per second like any type of velocity. We calculate this value from the product of the angular speed and the radius of the circular path. However, for this particular situation, the angular speed is not given so it would be difficult to specify the value of the tangential speed. In any case, you still have to use the expression:

    tangential velocity = angular speed x radius
  2. 29 April, 07:33
    0
    V (HST’s tangential speed) = 7570 m/s
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