Abriefcase sits stationary in an elevator. the mass of the briefcase if 4.5 kg. the elevator then begins accelerating upwards at 1.10 m/s^2. what is the normal force on this briefcase during this acceleration?
44.155 n
38.971 n
51.141 n
48.985 n

Question 1 (5 pts): what is the maximum distance for which you can you resolve the two individual headlights of an on-coming truck as two separate lights rather than one if the headlights are separated by 2.00 m and your eye has a diameter of 1.00 centimeter? assume a wavelength of 500 nm.