Cape Satellite
The speed and kinetic energy of a satellite?
I tried to do this problem, and my answer is wrong according to the back of the book: Take into account the rotation of the Earth in the following problem: A Canaveral) Cape is at a latitude of 28 degrees north. What speed to the east (in relation to the ground) that is given if a satellite is to achieve a low altitude circular orbit? How fast towards the west, the satellite should be given if it is to travel along the same orbit in the opposite direction? For the purposes of this issue, claiming that "low level" means essentially zero. B) Assume that the satellite has a mass of 14.0 kg. What kinetic energy that the launch vehicle for satellite to orbit the east? For a westward orbit? Anyone can make this problem so I can see what I'm doing wrong? I am so tired and the midterm exams tomorrow … Any help is appreciated =). For A, I 7.5 km / s and 8,3 km / s for B, I have 3.9 x10 ^ 5 kJ and 4.9 x 10 ^ 5 kJ
Let Re = 6370 km R.28 = 6370 km Finding cos28 = 5.624 kilometers radial velocity in this direction: V = R.28 * 2 * pi / 24 hours V = 5624 kilometers * 2 pi / 24 hours * 1hr/3600 V sec = 4090 kilometers / s ……. rendered useless – About the speed of sound Find the orbital speed of Earth in low orbit v ^ 2 / r = gv = sqrt (gr / 2) ……. Note that the use of Earth's radius, not the circle at 28 degrees. the satellite will oscillate between 28 degrees north and 28 degrees south. [Redacted: Error * Stupid: I was wrong in Earth orbit V floor - I added a 2 by mistake. I am deeply ashamed. I took a ^ 2. lol] Find the orbital speed of Earth in low orbit v ^ 2 / r = gv = sqrt (g) ……. This was my error v = sqrt (9.8m / s * 6370 kilometers) v = 7901 kilometers / v.east 7.901 s = -. 409 = 7.492 km / s v.west = 7.901 + .409 = 8,301 kilometers / s B. KE = 1 / 2 mv ^ 2 = 3.929 KE east and west KE 8 J = 4.834 E 8 J
Delta IV rocket launches WGS-3 satellite to orbit from Cape Canaveral
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