Just question number 6 please!

QUESTION 5 If the velocity for a particular setting of the launcher is measured to be 614 + 3.3 cm/s, what is the uncertainty in the theoretical value of the range, R, at 0 = 280, as calculated from equation 4? (Use g = 980 cm/s , and you can assume that there is no uncertainty associated with either g or 0.) Note that it is the uncertainty in the theoretical value of R that you wish to calculate here, not the fractional uncertainty or the per cent uncertainty. QUESTION 6 Since our theoretical calculation for the range of a projectile does not take air friction into account, we might expect the experimental value of the range at a given angle to be somewhat less than the theoretical value. For which angle(s) would you expect this effect to be the greatest, and why? O a. The effect would be the same at all angles. O b. For the shallowest angles, because the ball is in the air for a shorter period of time at these angles. O c. For the steepest angles, because the ball is in the air for a longer period of time at these angles. d. At angles near 450 because this angle results in the lowest height