Physics
Physics, 19.07.2019 05:30, natnat55

An earth satellite in an elliptical orbit travels fastest when it is

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Physics, 29.07.2019 06:00, cameron12502
An earth satellite in an elliptical orbit travels slowest when it is
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Physics, 13.08.2019 02:10, cecilysimpson7521
Two earth satellites, a and b, each of mass m, are to be launched into circular orbits about earth's center. satellite a is to orbit at an altitude of 5920 km. satellite b is to orbit at an altitude of 19600 km. the radius of earth reis 6370 km. (a) what is the ratio of the potential energy of satellite b to that of satellite a, in orbit? (b) what is the ratio of the kinetic energy of satellite b to that of satellite a, in orbit? (c) which satellite (answer a or b) has the greater total energy if each has a mass of 12.0 kg? (d) by how much?
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Physics, 25.10.2019 01:43, jadea520
An artificial earth satellite is initially orbiting the earth in a circular orbit of radius r0. at a certain instant, its rocket fires for a negligibly short period of time. this firing accelerates the satellite in the direction of motion and increases its velocity by a factor of α. the change of satellite mass due to the burning of fuel can be considered negligible. 1. let e0 and e denote the total energy of the satellite before and after the firing of the rocket. find e solely in terms of e0 and α. 2. for α > αes the satellite will escape from earth. what is αes? 3. for α < αes the orbit will be elliptical. for this case, find the maximum distance between the satellite and the center of the earth, rmax, in terms of r0 and α.
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