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2. Re for c = 2333.2

3. drag force = 0.858

4. P1a=1.102 atm and P1b=1.102 atm

6. hf=4.59 m

2. A sphere 1.4 cm in diameter is placed in a freestream of 18 m/s at 20C and 1 atm. Please compute the diameter Reynolds number of the sphere if the fluid is (a) air, (b) water, (c) hydrogen. 3. A telephone wire 9 mm in diameter is subjected to a crossflow wind and begins to shed vortices. If the wire is subjected to a cross flow wind of 12 m/s, estimate its drag force, in N/m length of pipe. 4. On a farm, water (y= 9810 N/m' & u = 1.15e-3 Pa*s) is delivered from a pressurized storage tank to a watering tank. Calculate the required air pressure above the water in the tank to produce (a) laminar flow (Re = 2000) and (b) turbulent flow (Re = 5000). Note that L = 123 m, h = 1 m, and D = 2 in. The pipe is steel (& = 4.6e-5 m).6. Water Flow at 20C through 10 m of 8mm inside diameter smooth glass pipe at 2.0 m/s. The friction factor for glass is 0.018. What is head loss caused by friction