Aball of mass 0.2kg is fropped from a height of 10m how much mechanical energy does it have right before it hits the ground assume there is no air resisstance

20 Joules

Explanation:

Mechanical Energy is the sum of kinetic and potential energy.

Since energy can only be transferred and cannot be lost, kinetic energy=potential energy.

Now we only need to use one of the formulas to find the answer. In this answer I'll be using the formula for potential energy which is mass × gravitational field strength ×height.

Substitute the values in and using gfs=10, the answer will be 20J.

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