B. Expressing experimental error. In an experiment to measure the acceleration of gravity at the surface of the earth in the DFW Metroplex, 9.85 m/s2 (E1) and 9.73 m/s (E2) are obtained. The accepted local value of g = 9.80 m/s2 (A) for DFW. What is the % difference for the measurements? What is the % error of the first measurement E1? What is the % error of the second measurement E2