A ball is dropped from height of 45 m. A second ball is thrown downwards from the same with an initial vity both the balls reach the ground at the same time, culate the value of u

h = 45 m

g(acceleration due to gravity) = 9.8 m/s^2 or 10 m/s^2

Final velocity ( v ) = 0 m/s

v = ?

we know theirs equation of motion, v^2 = u^2 + 2gh

0 = u^2 + 2(-10)(45) [ The acceleration due to gravity is ALWAYS negative. Any object affected only by gravity (a projectile or an object in free fall) has an acceleration of -9.81 m/s2, regardless of the direction. The acceleration is negative when going up because the speed is decreasing.]

0 = u^2- 900

900 = u^2

u = √900 = 30 m/s

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

voluntary muscles are controlled by the cerebellum.