Need explain how the energy of a rubber ball is transformed as it rolls down a ramp. give evidence that the energy of the ball remains the same at all points on the ramp.

potential energy transferring into kinetic energy

Explanation:

if the steepness of the ramp is changed then the ball will start to accelerate which builds up speed while rolls down the ramp.

name two ways organisms join a population and two ways organisms leave a population. two ways organisms join a population are birth rate and immigration. two ways they leave are death rate and emigration.

explanation:

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.