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An Artificial satellite moving in a circular path of radius 42250 kms. Calculate its speed if it takes 24 hrs to revolve around the Earth
speed = distance/time.
radius of circular orbit = 42250 km.
so, distance travelled = circumference 
= 2*3.14*42250.
time = 24hrs.
ie, speed = (2*3.14*42250)/24
= 11055.4 km/hr.


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