Acrude approximation for the x-component of velocity in an incompressible laminar boundary layer flow is a linear variation from u = 0 at the surface (y = 0) to the freestream velocity, u, at the boundary layer edge (y = δ). the equation for he profile is u = uy/δ, where δ = cx1/2 and c is a constant. show that the simplest expression for the y component of velocity is v = uy/4x. evaluate the maximum value of the ratio v /u, at a location where x = 0.5 m and δ = 5 mm.

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p