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Hi all, I have bachelor degree in Mechanical Enginner and 5 years experience. Can I join US Air Force as Officer. I am 28 years now.? What is inattentional blindness? A ranger wants to determine the height of a tree across a river. Elevation from bank 50°. Walls back 37 feet. New angle of elevation is 26°.? What is the circumference of the earth divided by 20? How to get current with only voltage source and an inductor given?