A student is competing in a contest to design a radio controlled blimp. The drag force acting on the blimp depends on the Reynolds number, R_e = (ρVD)/μ, where V is the speed of the blimp, D is the maximum diameter, ρ is the density of air, and μ is the viscosity of air. Th is blimp has a coefficient of drag (CD) of 0.3. Th is π-group is defined asWhere F_D is the drag force ρ is the density of ambient air, V is the speed of the blimp, and A_p = πD²/4 is the maximum section area of the blimp from a front view. Calculate the Reynolds number, the drag force in newtons, and the power in watts required to move the blimp through the air. Blimp speed is 800 mm/s, and the maximum diameter is 475 mm. Assume that ambient air is at 20°C.

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Fp Cp = 2 PV²A,