When 200 joules of work is done on a system by an external force of 15 newtons in 20. seconds, the total energy of that system increases by (1) 1.5 × 102 J (2) 3.0 × 102 J (3) 2.0 × 102 J (4) 2.3 × 103 J W = ΔK

anchor = archer //

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

what is the actual question though?

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