Question

Air (? = 1.225 kg/m3 and ? = 1.789 × 10−5 kg/m⋅s) flows in a wind tunnel, and the wind tunnel speed is measured with a Pitot-static probe. For a certain run, the stagnation pressure is measured to be 560.4 Pa gage and the static pressure is 12.7 Pa gage. Calculate the wind-tunnel speed.

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