Ask Question
5 June, 14:50

A satellite in earth orbit has a mass of 99 kg and is at an altitude of 2.02 106 m. (assume that u = 0 as r â â.) (a) what is the potential energy of the satelliteâearth system? j (b) what is the magnitude of the gravitational force exerted by the earth on the satellite? n (c) what force, if any, does the satellite exert on the earth? (enter the magnitude of the force, if there is no force enter 0.)

+5
Answers (1)
  1. 5 June, 15:00
    0
    (a) What is the potential energy: PE = - G * M * m/r

    Where: M is the mass of the earth which is 5.98 * 10^24 kg.

    m is the mass of the satellite.

    r is the space from the center of the earth to the satellite

    To conclude this distance add the radius of the earth to the altitude. Radius of the earth is 6.38 * 10^6 meters.

    r = 6.38 * 10^6 + 2.02 * 10^6 = 8.38 * 10^6

    PE = 6.67 * 10^-11 * 5.98 * 10^24 * 99/8.38 * 10^6 = 4.71240095 * 10^9 J

    (b) magnitude of the gravitational force exerted by the Earth

    Fg = G * M * m/r^2

    Fg = 6.67 * 10^-11 * 5.98 * 10^24 * 99 / (8.38 * 10^6) ^2 = 562.3078873 N

    (c) There are no other forces that the satellite exert on the Earth. So therefore, it is 0.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A satellite in earth orbit has a mass of 99 kg and is at an altitude of 2.02 106 m. (assume that u = 0 as r â â.) (a) what is the potential ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers