Answer:
5.23 X 10 ^ 3 kg/m cubed
Explanation:
Explanation is given in th picture
C) No ; histogram. each year will have a bar and each bar will be different
Answer:
$2 per book
Write a system of equations and solve for the variables.
Explanation:
Convection is the the transfer of heat my the physical movement of hot masses of air. As air is heated, it expands (as do all objects). As it expands, it becomes lighter then the surrounding air and it rises.