Aball is thrown straight upward with a speed of 20 m/s. what is the velocity of the ball at the top of its path?

Your answer is 32 hope i  

Amicroscope, because these cells are so small that you would not be able to see them, or what they attack without it.

F= (mass)(acceleration) = mam = 0.25 kgvi = 16 m/st = 2 svf = 0 m/s (since it was put to stop)a=(vf-vi)/ta=(0-16)/2a = 8 m/s^2 (decelerating)f = ma = (0.25 kg)(8 m/s^2)f = 2 nhope this !

The first one auditory. hope i . *)