What law explains why a rotating,collapsing cloud forms a flat protostellar disk around a protostar?
A)Kepler's third law
B)the universal law of gravitation
C)Wien's law
D)conservation of angular momentum

Question

Quizplus · Accepted Answer

The law that explains why a rotating, collapsing cloud forms a flat protostellar disk around a protostar is the conservation of angular momentum. As the cloud collapses, its radius decreases, and its rotation rate increases due to conservation of angular momentum. This increase in rotation rate causes the cloud to flatten into a disk perpendicular to the rotation axis, which then forms a protostar at its center.

What Law Explains Why a Rotating,collapsing Cloud Forms a Flat