Final answer:
The calculation of a propeller's angular velocity is based on torque and moment of inertia.
Step-by-step explanation:
The calculation of a propeller's angular velocity does not utilize air resistance, incorporate magnetic fields, factor in water density, or exclude external forces. The angular velocity of a propeller can be determined based on its moment of inertia and the applied torque. The moment of inertia represents the object's resistance to changes in its rotation, and the torque represents the rotational force applied to the object.
The formula for calculating angular velocity is:
Angular Velocity = Torque / Moment of Inertia
Therefore, to calculate the propeller's angular velocity, you need to know the torque exerted on the propeller and its moment of inertia.