A 500 kg satellite is in a circular orbit at an altitude of 500 km above the earth.s surface. Because of air friction, the satellite eventually falls to the Earth.s surface, where is hit the ground with a speed of 2km/s The work done by air friction is [M_(E ) = 6 xx 10^(24) kg, R_(E) = 6400 km]

A 500 kg satellite is in a circular orbit at an altitude of 500 km abo

1.	A 500 kg satellite is in a circular orbit at an altitude of 500 km above the earth.s surface. Because of air friction, the satellite eventually falls to the Earth.s surface, where is hit the ground with a speed of 2km/s The work done by air friction is [M_(E ) = 6 xx 10^(24) kg, R_(E) = 6400 km]
Answer» `1.67 xx 10^(11)` J `6 xx 10^(9)` J `-6 xx 10^(9)` J `-1.57 xx 10^(10)` J ANSWER :D