What happens to the kinetic energy of gas as it falls toward and eventually hits the accretion disk surrounding a protostar?

Question

Quizplus · Accepted Answer

The kinetic energy of the gas falling towards and hitting the accretion disk is converted into thermal energy, which heats up the disk. This is due to the friction and collisions that occur as the gas moves through the disk. As a result, the protostar continues to grow and accrete more material.

What Happens to the Kinetic Energy of Gas as It