Estimate the acceleration due to gravity at the surface of Europa (one of the moons of Jupiter) given that its radius is about one-fifth that of earth and making the assumption that its density is the same as Earth’s.

radiation

explanation:

heat is transmitted by radiation

i think the answer is a and b

i wish you luck

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