What is another example of convection

boiling water - When water heats, the heat from the burner is transferred to the container, heating the water at the bottom. This hot water rises, creating a circular motion, as colder water descends to replace it.

f=ma newton's second law 7x8=56n

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000