Problem 10.28 A 150-mm-diameter galvanized iron pipe is used to transport water at T 30° C with a velocity of 1.5 m/s. Use the equation-=-1.8 log Figure 1) Determine the pressure drop over the 15-m length of the pipe. Express your answer to three significant figures and Use the equation 18_לkng[㈜Lll-el e/D1116 | ( 3.7 내 r.j include the appropriate units. 45