9) Calculate the equivalent radar reflectivity factor Ze for a target assuming the following distributions (for simplicity assume the radar volume is 1 m³): (a) A Marshall-Palmer raindrop distribution No n(D)dD= exp(-D/D,)dD, with N₁ =1.4×10 m, D = 300 μm. Da (b) A gamma raindrop distribution n(D)dD No D 1 г(3) D₁ Do -exp(-D/D,)dD, with No 3.8×10m, D₁ = 100μm.