He thought elements that haven't been discovered belonged in the place of the gap. He could also use the atomic mass of the missing elements
Answer:
lbm/ft³ or psi/ft
Explanation:
The description in the question shows the density to measured is that of gases (upper atmosphere). The density of a gas can be described as the mass of the gas divided by the volume of the gas at a certain temperature and pressure. It's unit can be represented as lbm/ft³ or psi/ft.
NOTE:
"lbm" means "lean body mass" which is a unit for mass or weight and can be described as the pound mass
"psi" means "pound per square inch"; is also a unit for mass or weight
Equal. Good luck with other questions!
The measure of the quantity of heat exchanged.
Uses many different units of measurements.
It depends on the unit though if its in miles per hour then you can simply divide 50 by 2