For a nonsmoker, normal blood flow requires a pressure difference of 8.0 mmHg between the two ends of an artery. Assume that smoking increases viscosity by 10% and reduces the arterial diameter to 90% of its previous value. For a smoker, what pressure difference is needed to maintain the same blood flow?

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