a boy steps off the end of a high diving board and drops into the water below. it takes the boy 0.78 seconds to reach the water. How high was the diving board?

Argon, neon, and xenon are examples of

70 give a real life example showing how sensory neurons work with the motor neurons

He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is