Bob has been happily swinging on his massless chain in simple harmonic motion all day! As he swings, he sings, "I frequently calculate my oscillation frequency!" Please help Bob by designing an experiment to determine his frequency. (a) Circle the lab tools you would use to help Bob: Additional masses additional length of massless chain meter stick Photogate protractor stopwatch (b) Write the procedure for determining Bob's frequency including the measurements you'll make, how you'll use the equipment to make the measurements and how you'll determine Bob's frequency from those measurements. (c) Now Bob wants to know which variables affect his frequency. Explain to Bob how one variable could be changed in the experiment, how you would conduct the new experiment and how you would analyze the data.oscillating. (d) Bob turned on a motion detector in order to graph his position v. time as he was happily Time () i. At which time(s) is Bob at equilibrium? ii. Determine Bob's velocity at equilibrium. iii. Determine Bob's period. Explain your reasoning. (e) On the axes below, sketch a graph of kinetic energy, potential energy and total mechanical energy as a function of position for one oscillation