Find the radio of the orbital speed to two satellites of the earth if the satellites are at height 6400km and 19200km. (Radius of the earth = 6400km.)

Find the radio of the orbital speed to two satellites of the earth if

1.	Find the radio of the orbital speed to two satellites of the earth if the satellites are at height 6400km and 19200km. (Radius of the earth = 6400km.)
Answer» Solution :Orbital speed , `v_(0)=sqrt((GM)/(R+h))` The RATIO of the orbital speeds of two SATELLITES around the earth is `(V_(01))/(V_(02))=sqrt((R+h_(2))/(R+h_1))` Where `h_1 and h_2` are the heights of the satellites In this PROBLEM `h_1 = 6400km,h_(2) = 19200 km` R = 6400 km. `(V_(01))/(V_02)=sqrt((6400+19200)/(6400+6400))=sqrt((25600)/(12800))=sqrt2/1`