Physics, 04.04.2020 02:28, BabyDino9415

In order to get full credit, you need to show all your work. A 2000 kg spacecraft is to be launched from the surface of the earth (mass M=5.97x1024 kg, radius R = 6371 km) and placed in a circular earth orbit at an altitude of about 800 km. Ignore the kinetic energy that the spacecraft has on the ground due to the earth's rotation. A) Use Newton's 2nd law for circular motion and the Universal Gravitational law to find the speed of the spacecraft in this circular orbit around Earth. B) What is the mechanical energy of the spacecraft-earth system when the spacecraft is at the surface of the earth on the launch pad? C) How much work is required to put the spacecraft from the surface of the earth in the given circular orbit?

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