Energy, Work & Power Suite
Work with the force angle honored, power in its linear and rotational forms, efficiency, and the three energies — gravitational, kinetic, thermal — compared side by side on one chart. Covers §9.9–9.15.
Work & Power
Rotational Power: P = τω
Efficiency
The Three Energies
The same mass, three stores of energy — heights, speeds, and temperature changes made comparable in joules. FIG. E05-1
Everything on this page shares one currency: the joule. That's the whole power of the energy method — a pump's electrical input, a tank's elevation, a flow's speed, and a fluid's warmth can all be traded against each other on one balance sheet.