A light metre rule is allowed to pivot freely at the vero end. The other end is supported by a spring balance. A weight of 200N is then hung at the 40cm mark. The metre rule
stays horizontal, What is the reading on the spring balance — ill mark u as brainlist or whatever its called

A light metre rule is allowed to pivot freely at the vero end. The other end is supported

by a spring balance. A weight of 200N is then hung at the 40cm mark. The metre rule

stays horizontal, What is the reading on the spring balance — ill mark u as brainlist or whatever its called

answera compound;

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