Is the Vitamin D that our skin makes when exposed
to the sun's rays natural or synthetic?

The Vitamin D that is made when exposed to sun rays are natural. Your skin naturally intakes the sunlight as Vitamin D.

Explanation:

This happens naturally for everyone, although some people are able to make less Vitamin D than others.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)