While the earth and the sun are roughly at steady state (the output of the sun stays fairly constant and the earth absorbs the energy from it at a fairly constant rate) they are not in equilibrium. To be at equilibrium, they would have to be sending out and receiving equal amounts of energy and mass. The sun sends out far more energy than the earth as well as dumping a lot more mass, in the form of "solar winds" than the earth ever does - thus they are not in equilibrium.
because the earth and the sun is not in the thermal contact with each other that is why the earth & the sun is not in thermal equilibrium.
WHAT HOLDS THE EARTH IN ITS ORBIT REVOLVING AROUND THE SUN?In fact the Earth's orbit is a sort of equilibrium. The Earth's revolutions around the Sun provides it with centripetal force. A force that wants to eject it out of its orbit. That same force that wants to eject you out of your car when you are in a tight bend.However (and fortunately) there exist a strong gravitational force (attracting force) between the Sun and the Earth. It happens that the centripetal force ejecting the Earth is equal and hence balances the gravitational force pulling it towards the earth. As a result the Earth continues its motion around the Sun, undisturbed.As a conclusion, I'll say that what holds the Earth around the Sun it a result of 2 forces acting opposite to each other, namely the centripetal force pulling it away from the Sun and the gravitational force pulling it towards the Sun.
isostasy
That the earth revolves around the sun, not that the sun revolves around the earth.
Mercury is closer to the earth than the sun is, because the orbit of Mercury is between the sun and the orbit of Earth. However, when Mercury is on the opposite side of the sun from the earth, the sun is closer to the earth than Mercury is.
because the earth and the sun is not in the thermal contact with each other that is why the earth & the sun is not in thermal equilibrium.
because the earth and the sun is not in the thermal contact with each other that is why the earth & the sun is not in thermal equilibrium.
While the earth and the sun are roughly at steady state (the output of the sun stays fairly constant and the earth absorbs the energy from it at a fairly constant rate) they are not in equilibrium. To be at equilibrium, they would have to be sending out and receiving equal amounts of energy and mass. The sun sends out far more energy than the earth as well as dumping a lot more mass, in the form of "solar winds" than the earth ever does - thus they are not in equilibrium.
To be in thermal equilibrium, it would have to have the same temperature. (It isn't.)
The earth's constant orbit around the sun is caused by an equilibrium between two forces - the gravitational pull of the sun, and the earth's velocity acting at a right angle to it. If that gravitational pull was suddenly eliminated, the earth would continue onwards in a straight line.
Because the Sun is the primary source of all energy in the Solar System.The effective surface temperature of the Sun is 5,778 KelvinEnergy received by Earth will be radiated back into space, both during the day and at night. The average temperature on Earth is such, that the amount of radiation received, and the amount of radiation emitted, is in equilibrium (on average).
In equilibrium.
because of the way you are posistioned you are also sideways witch means that your body's equilibrium showes that you are standing right side up and to you the sun appears to be setting down because of the way you are posistioned you are also sideways witch means that your body's equilibrium showes that you are standing right side up and to you the sun appears to be setting down
because the earth and the sun is not in the thermal contact with each other that is why the earth & the sun is not in thermal equilibrium.
WHAT HOLDS THE EARTH IN ITS ORBIT REVOLVING AROUND THE SUN?In fact the Earth's orbit is a sort of equilibrium. The Earth's revolutions around the Sun provides it with centripetal force. A force that wants to eject it out of its orbit. That same force that wants to eject you out of your car when you are in a tight bend.However (and fortunately) there exist a strong gravitational force (attracting force) between the Sun and the Earth. It happens that the centripetal force ejecting the Earth is equal and hence balances the gravitational force pulling it towards the earth. As a result the Earth continues its motion around the Sun, undisturbed.As a conclusion, I'll say that what holds the Earth around the Sun it a result of 2 forces acting opposite to each other, namely the centripetal force pulling it away from the Sun and the gravitational force pulling it towards the Sun.
isostasy
isostasy