because you dont have a mind or beacause you need to look in the dictionary.
Friction.
Friction.
Friction always opposes the motion of a body by acting in the opposite direction to its motion.
The force on Earth that always opposes the motion of a body when it is in motion is called friction.
Water does reduce friction, as the liquid essentially lubricates the surface between the two objects. However, this only applies to affecting other friction. It has its own friction when objects move through a body of water.
No sun doesn't revolve to any celestial body, but the celestial body revolve around the sun.
opposing the motion
Gravitational acceleration is a constant value for a celestial body, and doesn't depend on air resistance/friction. The value on Earth is constant anywhere on Earth, just like the value on Mars is constant anywhere on Mars. In practical,however, this is different. Air resistance lowers the value of gravitational acceleration.
Energy is always conserved. When friction is present, the energy usually just turns into heat.
satellite
The moonMoon is the closet celestial body.
To derive the escape velocity of an object from a celestial body, you can use the formula: escape velocity (2 gravitational constant mass of celestial body / distance from the center of the celestial body). This formula takes into account the gravitational pull of the celestial body and the distance of the object from its center. By calculating this value, you can determine the minimum velocity needed for an object to escape the gravitational pull of the celestial body.