[填空题]
Hurricanes can involvf97y oxp 7gkrklqfu-; 6zc,2jcez 5w+e winds in excess of 120vp;d p gt4d )++j5t, (vdnyde)s mzy4t $km/h$ at the outer edge. Make a crude estimate of (a) the energy, $ \times10^{16 }$ J (b) the angular momentum, of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 $kg \cdot m^2$) of radius 100 km and height 4.0 km. $ \times10^{20 }$ $kg \cdot m^2$