What conditions must be met if a man-made satellite is to attain a circular orbit around the earth?(choose as many as apply)
A) It must be launched with a tangential speed of 0.
B) It must be launched with a tangential speed of 8 km/s.
C) It must be launched with a tangential speed greater than 8 km/s.
D) It must be launched horizontally at a distance over 150 kilometers above the earth.
E) It must be launched vertically with a speed of 8 km/s.