A metal cube of cross sectional area of 3.45m² at 0°C at a temperature rise of 70°C with a length of 3m. Find the coefficient of superficial expansivity​

a=d/t

a="triangle"v/t

explanation:

a = acceleration

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