A 600 kg satellite is in orbit 1,200,000 meters above the surface of the Earth. The mass of the Earth is 5.97E24 kg, and the radius of the Earth is 6.37E6 meters. what is The gravitational force acting on the satellite

An air standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes. 1-2 isentropic compression 100 kpa and 22°c to 600 kpa 2-3 v=constant heat addition to 1500 k 3-4 isentropic expansion to 100 kpa 4-1 p=constant heat rejection to initial state (a) show the cycle on p-v and t-s s (b) calculate the net work output per unit mass (409 kj/kg) (c) determine the thermal efficiency (47.9%)