What are the benefits of evolution for the human population?

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.

When traveling from a soild to air, what would you expect a sound wave to do? a) stay at the same speed b) speed up c) slow down d) fluctuate speed

Copper has a specific heat of 0.385 j. a piece of copper absorbs 5000 j of energy and undergoes a temperature change from 100 celsius to 200 degrees celsius. what is the mass of the piece of copper?