For the laminar flow of water over a sphere, the drag coefficient CF is defined as CF=F/(ρU2D2), where F is the drag force, ρ is the fluid density, U is the fluid velocity and D is the diameter of the sphere. The density of water is 1000 kg/m3. When the diameter of the sphere is 100 mm and the fluid velocity is 2 m/s, the drag coefficient is 0.5. If water now flows over another sphere of diameter 200 mm under dynamically similar conditions, the drag force (in N) on this sphere is_______20

For the laminar flow of water over a sphere, the drag coefficient CF i

1.	For the laminar flow of water over a sphere, the drag coefficient CF is defined as CF=F/(ρU2D2), where F is the drag force, ρ is the fluid density, U is the fluid velocity and D is the diameter of the sphere. The density of water is 1000 kg/m3. When the diameter of the sphere is 100 mm and the fluid velocity is 2 m/s, the drag coefficient is 0.5. If water now flows over another sphere of diameter 200 mm under dynamically similar conditions, the drag force (in N) on this sphere is_______20
Answer» For the laminar flow of water over a sphere, the drag coefficient $C_{F}$ is defined as $C_{F} = F / (ρ U^{2} D^{2})$ , where F is the drag force, $ρ$ is the fluid density, U is the fluid velocity and D is the diameter of the sphere. The density of water is 1000 kg/ $m^{3}$ . When the diameter of the sphere is 100 mm and the fluid velocity is 2 m/s, the drag coefficient is 0.5. If water now flows over another sphere of diameter 200 mm under dynamically similar conditions, the drag force (in N) on this sphere is_______ 20

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