The speed of sound at high altitudes, where the air is less dense, is greater than the speed of sound at low altitudes, where the air is more dense.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

How many neutrons does plutonium -196 with an atomic number of 78.