The volume flow rate in an artery that supplies blood to the brain is 3.5x10^-6 m^3/s. If the cross-sectional area of the artery is 8.5x10^-5 m^2. What is the average speed of the blood through this vessel?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air