physics-9-chapter-4-turning-effect-of-force-14


1. How many times satellites of GPS revolve around the earth?




2. What is the speed of satellites of GPS?




3. A polar satellite is launched at 850 km above Earth. Find its orbital speed?




4. Which force a satellite requires moving around the earth?




5. How many kilometres Moon is away from the earth?




6. Moon is nearly 3,80,000 km away from the................?




7. What is the formula for necessary centripetal force?




8. What is the speed of a satellite revolving around very close to the Earth?




9. What is the speed of a satellite revolving around very close to the Earth?




10. Which of the formula gives the velocity for a satellite revolving close to the Earth?




11. What is the orbital speed of a low orbit satellite?




12. A communication satellite is launched at 42000 km above Earth. Find its orbital speed?




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