Don't forget to include uncertainty and units for all of the following questions. This is a really important topic, so make sure you understand it well enough. It will keep popping up in every experiment. (2pts each) 5) Compute the uncertainty of r2 in terms of r and its uncertainty, 5r. (This problem is trickier than it may rst seem! You cannot write r2 = r - r and use the multiplication rule, you must use the Powers of Errors rule.) 6) You drop a ball from some initial height above a table while your Iabmate records the time it takes for the ball to hit the tabletop. The averaged measured time is t : 0.45 i 0.083. a) Using the equation y = at-2, where a = 9. 7912, find the height above the 5 table that the ball was dropped (y). b) lfthe height of the table from the floor was measured to be h = 1.09 i 0.02m, find the height above the floor that the ball was dropped