Why is air warmer near Earth's surface? A.
The Sun heats Earth's surface, and in turn the air above it is heated.

B.
Warm air is more dense and sits on top of Earth's surface.

C.
Warm air is less dense and sits on Earth's surface HELP PLZ!!

I am pretty sure it is A!

:D

found in the nucleus

has mass of one amu

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