3.) The connection of the left ventricle of the heart lasts for 25!! ms and the blood speed after contraction is 0.30 mic maide the aorta. Find the average acceleration of a red blood cell in leaving the heart. 4.) The aorta in problem no. 3 has two equal branches [same area). Ifthe diameter of the aorta is 1!, what is the diameter of one of the branches