Which of the following statements is true? A. younger athlete will always beat an older one. B. People over 40 should not exercise strenuously. C. On average, a woman's athletic ability peaks at a later age than a man's. D. Athletic performance peaks during the teen years.

True or false graphs must include scales that increase by the same amount

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?

The solid that is formed and usually sinks to the bottom of a solution is the