Most of the energy on Earth is provided by the sun.

Let F_1 be the magnitude of the gravitational force exerted on the Sun by Earth and F_2 be the magnitude of the force exerted on Earth by the Sun. Then:

What were the condition present on the early earth that provided energy for the chemical origin of life?

Most abundant protein on earth is

The solar constant is the amount of heat energy received per second per unit area of a perfectly black surface placed at a mean distance of the Earth form the Sun, in the absence of Earth's atmosphere, the surface being held perpendicular to the direction of Sun's rays. Its value is 1388 W//m^(2) . If the solar constant for the earth is 's'. The surface temperature of the sun is TK,D is the diameter of the sun, R is the mean distance of the Earth from the sun. The sun subtends a small angle 'theta' at the earth. Then correct options is/are:-

Consider the circular motion f the earth around the sun. Which of the following statements is more appropriate? a. Gravitational attraction of the sun on the earth is equal to the centripetal force. b. Grvitational attraction of the sun on the earth is the centripetal force.

Find the component statements of the following compound statement: The earth is round or the sun is cold.

Which of the diagrams shown in figure. Most closely shows the variation inkinetic energy of the earth as it moves once around the sun in its elliptical orbit ?

The energy reveived from the sun by the earth and surrounding atmosphere is 2 cal cm^(-2) min^(-1) on a surface normal to the rays of sun. Q. What is the total energy radiated, in J min^(-1) , by the sun to the universe? Distance of the sun from the earth is 1.49xx10^(11) m.

In the solar system, the Sun is in the focus of the system for Sun-earth binding system. Then the binding energy for the system will be [given that radius of the earth's orbit round the Sun is 1.5 xx 10^(11) m and mass of the earth = 6 xx 10^(24) kg ]

The percentage change in the acceleration of the earth towards the Sun from a total eclipse of the Sun to the point where the Moon is on a side of earth directly opposite to the Sun is