What are (a) the speed and (b) the period of a 220kg satellite in an approximately circular orbit 640km above the surface of the earth? Suppose the satellite loss mechanical energy at the average rate of 1.4 xx 10^(5) J per orbital revolution Adopting the reasonable approximation that due to atmospheric resistance force the trajectory is a circle of slowly dimnishing radius Determine the satellite's (c) altitude (d) speed & (e) period at the end of its 1500^(th) revolution (f) Is angular momentum around the earth 's centre consered for the satellite or the satellite earth system .

What are (a) the speed and (b) the period of a 220kg satellite in an a

1.	What are (a) the speed and (b) the period of a 220kg satellite in an approximately circular orbit 640km above the surface of the earth? Suppose the satellite loss mechanical energy at the average rate of 1.4 xx 10^(5) J per orbital revolution Adopting the reasonable approximation that due to atmospheric resistance force the trajectory is a circle of slowly dimnishing radius Determine the satellite's (c) altitude (d) speed & (e) period at the end of its 1500^(th) revolution (f) Is angular momentum around the earth 's centre consered for the satellite or the satellite earth system .
Answer» Answer :`(a) `(448)/(sqrt(3520))km//s=7.527km//s` (b) `(220pi)/(7)sqrt(3520)sec~~1.63hour` (c) `[(22 XX 14 xx 64^(2) xx 7040)/(22 xx 14 xx 64^(2) + 7040 xx 6)]km~~411.92 km` (d) `(448)/(sqrt(3406))km//sec~~7.67km//s` (e) `(1703pi)/(56) sqrt(3406) sec ~~ 1.55hour` (f) No .

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