The acceleration due to gravity on Earth is 9.81 m/s(down). A penny was thrown downwards from a height of 381 m and took 6.75 s to hit the
ground. Assuming no friction, what was the initial velocity of the penny?

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j