If an object is moving with a constant acceleration, it’s velocity is A) Zero
B) Changing by the same amount each time interval
C) Constant
D) Changing by a random amount each time interval

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?