Fish are hung on a spring scale to determine their mass. (a) what is the force constant of the spring in such a scale if the spring stretches 8.00 cm for a 10.0 kg load? (b) what is the mass of a fish that stretches the spring 5.50 cm? (c) how far apart are the half-kilogram marks on the scale?

continuous conducting path for current, power supply

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j