Angular momentum
= Iω kg-m²/s.
ω=angular velocity in rad./s.
I=moment of inertia
=(1/2)Mr²
M=total mass of air in kg.
r=outside radius of hurricane, in m.
Hurricanes can involve winds in excess of 120 km/h at the outer edge.
Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg*m^3 of radius 120 km and height 4.5 km.
Make a crude estimate of the angular momentum of such a hurricane.
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