Which of the following is NOT a possible source of internal heat for terrestrial planets? Question 7 options:

Fusion of atomic nuclei

Accretion of material

Heavier materials sinking and less heavy materials rising

Radioactive decay of nuclei

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

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