Question: Air at 308C flows over a 3.0-cm-outer-diameter, 45-m-long pipe with a velocity of 6 m/s. Calculate the drag force exerted on the pipe by the

Air at 308C flows over a 3.0-cm-outer-diameter, 45-m-long pipe with a velocity of 6 m/s. Calculate the drag force exerted on the pipe by the air. (Air properties at 30°C are: ρ = 1.164 kg/m³, ν = 1.608 × 10^–5 m²/s.)

(a) 19.3 N

(b) 36.8 N

(d) 53.9 N

(e) 60.1 N

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