the answer is b, faster through steel than through air.
<span>I found the exercise on the internet. Attached is a pic of the diagram.
Correct answer:
"All collisions between particles are perfectly elastic."
This is called elastic collision. Elastic collision is the </span><span>encounter between two molecules where the total </span>kinetic energy<span> of the molecules before the encounter is equal to their total kinetic energy after. The perfectly elastic collision it only happens, though, when the kinetic energy is not transformed into other forms of energy.</span>
Answer: Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs
Explanation:
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