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An artificial satellite moving in a circular orbit around the earth has a total energy E0 . Its potential energy is
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A satellite moves eastwards very near the surface of the Earth in equatorial plane with speed 
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The little prince (the main character of the novel written by Antoine de Saint-Exupery) lives on the spherical planet named B-612, the density of which is 5200 kg/m3. The Little Prince noticed that if he quickens his pace. he feels himself lighter. When he reached the speed of 2m/s he became weightless, and began to orbit about the planet as a satellite. What is escape speed on the surface of planet?
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A satellite is moving around the earth with speed v in a circular orbit of radius r. If the orbit radius is decreased by 1 %, its speed will
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The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is v. For a satellite orbiting at an altitude of half of the earth's radius, the orbital velocity is
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A satellite is seen after each 8 hours over equator at a place on the earth when its sense of rotation is opposite to the earth. The time interval after which it can be seen at the same place when the sense of rotation of earth and satellite is same will be :
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A satellite is seen after every 6 hours over the equator. It is known that it rotates opposite to that of earth's direction. Then the angular velocity (in radians per hour) of the satellite about the centre of earth will be:
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