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Artificial Satellites

What is the s...

Question

What is the source of energy for an artificial satellite? Can this source be used to run vehicles on the Earth?

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Solution

Solar energy is the only source of energy for artificial satellites.
Yes, solar energy can be used to run vehicles on Earth. However, for now, our technology is not much advanced to have this kind of vehicle running around. But, in the future, we will surely have vehicles powered by solar energy.

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Q. Answer the following questions:
a. What is meant by an artificial satellite? How are the satellites classified based on their functions?
b. What is meant by the orbit of a satellite? On what basis and how are the orbits of artificial satellites classified?
c. Why are geostationary satellites not useful for studies of polar regions?
d. What is meant by satellite launch vehicles? Explain a satellite launch vehicle developed by ISRO with the help of a schematic diagram.
e. Why it is beneficial to use satellite launch vehicles made of more than one stage?

What is the main source of energy for the earth ?

Q. What would be an efficient source of energy for a satellite to function?

Q. A launching vehicle carrying an artificial satellite of mass

m

is set for launch on the surface of the earth of mass

M

R

. If the satellite is intended to move in a circular orbit of radius

7 R

, the minimum energy required to be spent by the launching vehicle on the satellite is :
(Gravitational constant

= G

)

Q. Why is the sun called the ultimate source of practically “all the energy” on the earth? Which form of energy, if any, can be viewed as an exception to this statement? (Sources of energy)

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