UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the solar cells and batteries in satellites run out.
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the laws of gravitation predict a trajectory spiraling inwards.
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of viscous forces causing the speed of satellite and hence height to gradually decrease.
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of collisions with other satellites.
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Detailed explanation-1: -Satellite orbitting the earth have finite life and sometimes debris of satellites fall to the earth. This is because. As the total energy of the earth satellite bounded system is negative (−GM2a), where a is radius of the satellite and M is mass of the earth.
Detailed explanation-2: -The correct option is B. of viscous forces causing the speed of satellite and hence height to gradually decrease. As the total energy of the earth satellite of radius R bounded system is negative (-GM a) where M is mass of the earth and a is the radius of satellite.
Detailed explanation-3: -The Short Answer: Satellites don’t fall from the sky because they are orbiting Earth. Even when satellites are thousands of miles away, Earth’s gravity still tugs on them.
Detailed explanation-4: -Satellites and the sensation of weightlessness It typically occurs when an object is in orbit or is in ‘free fall’. True weightlessness only occurs in deep space where the gravitational force on an object is zero. A satellite in a stable circular orbit around Earth is continually in free fall.
Detailed explanation-5: -The Short Answer: Two things can happen to old satellites: For the closer satellites, engineers will use its last bit of fuel to slow it down so it will fall out of orbit and burn up in the atmosphere. Further satellites are instead sent even farther away from Earth.
Detailed explanation-6: -As the satellite is no longer travelling fast enough to go past the curve of the planet before being pulled down to the surface, gravity takes over and the satellite falls to Earth. Smaller satellites will burn up in the atmosphere as they descend.