Points A and B are 1.5 km apart along a 15-cm new steel pipe (ks = 4.6 × 10–5 m). Point B is 20 m higher than A. With a fl ow from A to B of 0.03 m3 /s of crude oil (S = 0.82) at 10°C (μ = 10–2 N∙s/m2...

Points A and B are 1.5 km apart along a 15-cm new steel pipe (ks = 4.6 × 10–5 m). Point B is 20 m higher than A. With a fl ow from A to B of 0.03 m3 /s of crude oil (S = 0.82) at 10°C (μ = 10–2 N∙s/m2 ), what pressure must be maintained at A if the pressure at B is to be 300 kPa gage?