Question 9 (1 point) Two satellites are orbiting different planets with the same orbital radius. If planet A has a mass four times that of planet B then the orbital velocity of satellite A is _________ the orbital velocity of B. O twice 0 four times 0 half 0 one quarter 0 the same The top of a mountain at the equator is 6375 km from Earth's centre. The tangential speed is a.bc x 10d m/s. The values of a, b, c, and d are _____ . S 15/ Enter your four-digit answer without spaces or commas between digits. Question 2 (1 point) The tip of an airplane propeller blade is travelling at 295 m/s. If the radius of the propeller is 1.35 m, the period of rotation of the propeller blade is a.bc x 10'CI s. The values of a, b, c, and d are 6/ Enter your four-digit answer without commas or spaces