solar revolution
How can I solve this problem in physics of the orbital speed?
The Solar Maximum Mission satellite was placed in a circular orbit 150 km above Earth. Determine (a) the satellite's orbital velocity and (b) the time needed for a complete revolution.
Start by converting of 150 km above the surface in meters above the center. Scienceworld.wolfram.com gives a radius of 6378.137 kilometers, or 6,378,137 meters. Adding its 150 miles, we an orbital radius of 6,619,538.6 meters. Enter that number in the following equation: v ^ 2 = Mg / r, where v = velocity in meters / second, m = mass of Earth in kilograms = 5.9742 × 10 ^ 24 kg, g = the gravitational constant = 6.67E-11, r = radius of the orbit in meters = 6619538.6 Solving V, we obtain v = 7757.536271 m / s. The orbital period = 2 * pi * r/7757.536271 seconds = 5361,469 seconds. 1hr, 29min, 21.469sec.
Solar Revolution - Sphelar : Spherical Solar Cell : DigInfo
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