Arocket in orbit just above the atmosphere is moving in uniform circular motion. the radius of the circle in which it moves is 6.381 × 106 m, and its centripetal acceleration is 9.8 m/s2 . what is the speed of the rocket?

Which notation is used to represent an alpha particle? a. b. c. d.

The dot diagram represents the motion of the motorcycle as it moves from left to right

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?