How do chemical, physical, geological, and biological factors influence an aquatic ecosystem?

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

Which feature indicates that mars resides in the inner region of the solar system

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?