Earth Satellites

What should be the percentage increase in the orbital velocity to escape velocity?

An artificial satellite circles around the earth at a distance of $3400 km$. Calculate the orbital velocity. Given the radius of the earth is $6400 km. (g=9·8 m{s}^{-2})$.

Find the orbital velocity of an artificial satellite of the earth in an orbit close to the earth?

The time period of an earth satellite in circular orbit is independent of

Two satellites of earth, ${\mathrm{S}}_1$ and ${\mathrm{S}}_2$ are moving in the same orbit. The mass of ${\mathrm{S}}_1$ is four times the mass of ${\mathrm{S}}_2$. Which one of the following statements is true?

The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is $v.$ The orbital velocity of a satellite orbiting at an altitude of half of the radius of earth is

What would have been the duration of the year if the distance between the earth and the sun were half the present distance?

The radii of orbits of two satellites revolving around the earth are in the ratio $3:8$. Compare their (i) critical speeds (ii) period of revolution.

The distances of two planets from the sun are ${10}^{13} \mathrm{m} \mathrm{and} {10}^{12} \mathrm{m}$ respectively. Find the ratio of time periods and orbital speeds of the two planets.

Define binding energy and obtain an expression for binding energy of a satellite revolving in a circular orbit around the earth.

Define critical velocity of a satellite and write an expression for it.

Show that the square of the period of revolution of a satellite is directly proportional to the cube of the orbital radius.

Satellite is an object which revolves around the _____.

Who discovered the four largest moons of Jupiter, now known as the Galilean moons?

What is the correct transformation of the sentence: 'No sooner did he reach the station than the train left.'?

Choose the correct transformation of the sentence: 'She is too young to go to school.'

What is the term used for the downward movement of rock and soil due to gravity?

Which determiner correctly completes this sentence: 'I have ___ idea about the new project'?

A researcher collecting data through face-to-face interaction is using which method?

Who was the Chief Justice of India during the Kesavananda Bharati case?