Match the device with its task. i. Turbine
ii. Fan
iii. Compressor
iv. Pump
a. Increases the pressure of a gas slightly and is mainly used to move a gas
b. Increases pressure of gases and vapors
c. Increases pressure for liquids
d. Produces shaft work

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?