Velocity profiles are measured at the upstream end and at the downstream end of a control volume as shown in Figure. The maximum velocity at the inlet and at the outlet is the same V=Vmax. =3m/s. The velocity profile at the inlet is uniform, while the velocity profile at the outlet is linear as shown in figure. If the fluid is air, with p=1.22 Kg/m³ and H=lm, calculate the drag per unit length on the wall.

Trying to see if I did this right or how to adjust formulas. This is not a graded assignment I have changed the values around so I can understand the formulas or if there are mistakes in the formulas to use that with my assignment.  Thank you.

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In the context of online safety, describe the ways in which the public's behavior has shifted as a result of technical developments.