What are the three subatomic particles of an atom?

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

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?

The particles that are found in the nucleus of an atom are