What is the total energy change during the solidification of a liquid metal into a sold. The liquid metal is in a rectangular mold that is 10cm long, 5 cm high and 5 cm wide. The surface energy of the metal is 158x10-7 J/cm2 and the Volume free energy of the metal is -312.2 J/cm3.

wavelength divides in half and speed stays the same.

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

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