In a combustion process, gasoline particles are to be dropped in air at 200°F. The particles must drop at least 10 in. in 1 s. Find the diameter d of droplets required for this. (The drag on these particles is given by FD = 3πμ Vd, where V is the particle speed and μ is the air viscosity. To solve this problem, use Excel’s Goal Seek.)
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