What are the 4 “S” terms that we use to remember the difference between the types of waves?

Identify two factors that determine the rate of stream erosion

Why is metal often used for cooking pan?

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?