course PHY 202 Rubber Band number and length(cm)17.5517.8 3 7.25 2 7.5 5 7.4 3 7.5 7 7.39 4 7.5 9 7.3 5 7.6 11 7.35 6 8 13 7.45 7 7.6 15 7.25 8 7.4 17 7.45 9 7.3 19 7.3 10 7.5 21 7.49 11 7.7 23 7.48 12 7.8 25 7.37 13 7.6 27 7.4 14 7.6 29 7.3 15 7.4 16 7.5 17 7.5 18 7.6 19 7.5 20 7.6 21 7.5 22 7.5 23 7.6 24 7.6 25 7.8 26 7.7 27 7.9 28 7.6 29 7.6 30 7.7 31 paper clips,30 rubber bands,4.9cm paper clips, counted from left to right."