a. Make a graph of force vs. holder height, and include error bars on your plot.Draw the best straight line through your points.

b. From the slope of the line(s) in the graph in (b), report the spring constant of the springwith uncertainty.

c. Using your reported value and uncertainty for the spring constant, predict the period of oscillation for your spring with a 70 gram mass attached to its bottom end.

Part B: Measure the spring constant for your spring Masses (no uncertainty): 50g, 70g, 90g, 110g, 130g. Holder heights (with uncertainty): (30.2079+0.0667)cm, (26.6074+0.1018)cm, (23.0070+0.0920)cm, (19.4066+0.0676)cm, (15.8062+0.1285)cm