A ball is dropped in a vacuum (no air resistance). As it falls it loses 7 J of potential energy. How much kinetic energy did it gain

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

distance = 150m

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

root(2500+10000)

root 125000