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This document from a physics 103 course covers various problems related to gravitational forces acting on spaceships and planets. Students are asked to find the net gravitational force on a spaceship located halfway between earth and the moon, determine the altitude and period of a satellite in circular orbit around earth, and calculate the mass of jupiter from its orbital data. Additionally, a problem about a spacecraft near a black hole is presented, requiring calculations of the total force on the spacecraft and the difference in gravitational fields acting on its occupants.
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29. The average distance separating Earth and the Moon is 384 000 km. Use the data in Table 7.3 to find the net gravitational force exerted by Earth and the Moon on a spaceship with mass 3.00 x 104 kg located halfway between them. 35. A satellite moves in a circular orbit around Earth at a speed of 5 000 m/s. Determine (a) the satellite’s altitude above Earth’s surface and (b) the period of the satellite’s orbit.
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