SUN

A planet is revolving around the Sun in an elliptical orbit. Its closest distance from the sun is r_(min) . The farthest distance from the sun is r_(max) if the orbital angular velocity of the planet when it is nearest to the Sun omega then the orbital angular velocity at the point when it i at the farthest distanec from the sun is

Times, Mirror and Sun are three newspapers All readers of the Times read the Sun. Every person either reads the Sun or does not read the Mirror. 11 people read the Sun but does not read the Mirror. 8 people read either the Times or the Mirror but not both. 10 people read the Sun and either read the Mirror or do not read the Times. 14 people either read the Sun and not the Mirror or read both the Sun and Mirror. 9 people neither read the Times nor the Mirror.

The earth revolves round the sun because the sun attracts the erth. The sun also attracts the moon and this force is about twice as large as the attraction of the earth on the mon. Why does the moon not revolve round the sun? Or does it?

A planet is revolving in an elliptical orbit around the sun. Its closest distance from the sun is r and the farthest distance is R. If the velocity of the planet nearest to the sun be v and that farthest away from the sun be V. then v/V is

The radiation power emitted by a star "A" is 1000 times that of the sun.If the surface temperatures of the sun and star "A" are "6000K and "2000K" respectively,the ratio of the radii of the star "A" and the sun is

The radiation emitted by a star A is 100 times that of the sun. If the surface temperatures of the sun and the star are 6000 K and 2000 K respectively, then the ratio of the radii of the star and the sun is

The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 8000 K and 2000 K respectively. The ratio of the radii of the star A and the sun is

The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 6000 K and 2000 K respectively, the ratio of the radii of the star A and the sun is