How are loudness and intensity related to the amplitude and energy of a sound wave? what is the unit of intensity?

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

In a star, nuclear fusion occurs in the a. photosphere. b. corona. c. radiative zone. d. core.

How does an increase in temperature generally affect the rate of a reaction?