Recent content by Tryan

Oh right I understand now. Cool understood.

thanks heaps ehild just reading the website you gave me about orbital stability... Although you said it was about geostationary orbits however the time period in the question is 12 hours that's half a sidereal day. So wouldn't that mean the satellite in this context would not actually be...

thanks for that so here's what is got from plugging in v as 2πr/T into mv^2/r. so i got 4π^2r^3=GMT^2 so is that right and can i just say that - pi(π), G and M are all constants?? so therefore r^3 is proportional to T^2. Oh and what are the conditions exactly still don't get it?

Homework Statement mass of the Earth = 5.97 * 10^24 kg Polar Radius of Earth = 6.36 * 10^6 m Satellite = 1.08 * 10^3 Kg Altitude = 2.02 * 10^7 m 3) for any object orbting around a primary body R^3 ∝ T^2 where R is the radius of the orbit and T is the time period for the orbit. show that...