HELP PL A pulse travels at speed v on a stretched rope.

By what factor must you increase the force you exert on the rope to cause the speed to increase by a factor of 1.20?
F'/F =

compass can be used day and night, cloudy or sunny

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