Question 1 of 10 Which equation correctly relates mechanical energy, thermal energy, and total

energy when there is friction present in a system?

A. ME = Etotal + Ethermal

B. ME = Ethermal - Etotal

C. ME = Etotal - Ethermal

O D. ME=

Etotal

Ethermal

SUBMIT

ME= E total - E thermal

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.