Question: Engine oil at 40C ( = 876 kg/m 3 , = 0.2177 kg/ms) flows in a 20-cm-diameter pipe at a velocity of 1.2 m/s.

Engine oil at 40°C (ρ = 876 kg/m³, μ = 0.2177 kg/m∙s) flows in a 20-cm-diameter pipe at a velocity of 1.2 m/s. The pressure drop of oil for a pipe length of 20 m is

(a) 4180 Pa

(b) 5044 Pa

(d) 7419 Pa

(e) 8615 Pa

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