Question 2 Calculate the center of mass for the following masses. Round your answer to two decimal places, if necessary. m1 = 5 at x1 = 4, m2 = 4 at x2 = 8, m3 = 9 at x3 = 13, and m4 = 2 at x4 = 16 Your Answer: Answer Question 24 (4 points) Suppose a culture of bacteria doubles in 9 hours, how many hours does it take to multiply by 6? Round your answer to two decimal places, if necessary