a satellite of mass m is orbiting a planet with a mass of M. The satellite orbits with a constant speed is at a constant orbit radius R from the center of the earth. The torque exerted on the satellite by the planet is

If an object is moving or in motion

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling