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Q. A bullet is fired from ground level with a speed of 150 m/s at an angle of 30 degrees above the horizontal. What is the velocity of the bullet when it is at the highest point of its trajectory?

Q. An Earth satellite moves in a circular orbit 557 km above Earth's surface with a period of 95.59 min. What are (a) the speed and (b) the magnitude of the centripetal acceleration of the satellite?

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