A picture of weight 4N is supported by a string on a nail as shown below. Find the tension on the strings at P and Q if the strings are each inclined at 80° to the
vertical.
80
:80
T
P
4N

the right answer is 0.3 meters per second

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