An airplane started at a distance of 20 km from chicago and flew directly away from it. 10 minutes later, the airplane was 55 km from chicago. if dis the distance of the airplane from chicago, what is ad? a. 10 km b. 55 km c. 35 km d. 20 km

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?