I'm a HS senior. GPA 3.6, SAT 1340, ACT 30. Class ranking in top 25%. Planning on majoring in mechanical engineering. (Possible minor in physics?) Have taken chemistry, biology, 4 years of engineering electives, 3 years if physics, and taking AP calc now, . How likely am I to earn a scholarship? Is there a need/shortage for mechanical engineers or physicists in AF?