Why are Big cinema hall are carpeted and their walls are made of some rough materials

because these materials absorb the sound and do not allow them from going out of as, some times the sound can be a trouble to the people.

Explanation: Hope this helps!

answer would be d.) i hope this

explanation:

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