If i hold a glass full of air upside down, and i take it to the bottom of the swimming pool without tipping it, the density (thickness) of the air inside the glass will be at the surface.

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?