satellite that is a distance of two earth radii from the center of the earth. B) what is the magnitude of the gravitational force exerted on the earth by the satellite? C) determine the magnitude of the satellites acceleration. D) what is the magnitude of the earths acceleration?
2006-09-16 09:04:38 · 2 answers · asked by G squiz 1 in Education & Reference ➔ Homework Help
Gravitational force at the surface of the earth (one radius from center) is m*g, where g=9.8m/sec^2. The force decreases and 1/r^2 from the center of the earth, so the force at 2 radii will be 1/4 of that at the center, so g=(9.8/4)m/sec and the force is Ms*g/4 (Ms = satellite mass). The satellite is accelerating at that rate (g/4). The acceleration of the earth to the satellite is inversely proportional to the mass ratio, so it is extemely small (~Ms/Me)*g (Me = earth mass).
2006-09-16 10:41:29 · answer #1 · answered by gp4rts 7 · 0⤊ 1⤋
i'd actually help with #2. Use F = ma to remedy this. The acceleration of gravity is 9.8 m/s^2. you recognize the mass of the guy and crate. individual: F = sixty 5(9.8) = 637 N (N for Newtons) Crate: F = 35(9.8) = 343 N the floor has to exert 637 + 343 Newtons on the crate otherwise the floor might want to cave in. The crate in basic terms has to help the guy so it exerts 637 N.
2016-11-27 19:10:29 · answer #2 · answered by Anonymous · 0⤊ 0⤋