Would a heat engine be more efficient in an environment that generally has warm or cold temperatures? Explain your answer.

d

explanation:

i think the answer is d. but im not sure!

number of electrons for neutral cl

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.