Which name best describes the process of gas exchange? oxygen diffuses into the blood at the site of the heart, and carbon dioxide diffuses into the blood at the site of the alveoli. carbon dioxide diffuses into the blood at the site of the heart, and oxygen diffuses into the blood at the site of the tissues. oxygen diffuses into the blood at the site of the alveoli, and carbon dioxide diffuses into the blood at the site of the tissue. carbon dioxide diffuses into the blood at the site of the alveoli, ad oxygen diffuses into the blood at the site of the tissue.

An charge with mass m and charge q is emitted from the origin, (x, y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.