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CALCULATE POTENTIAL ENERGY OF GRAVITY AND KINETIC ENERGY Please fill out Table 5 for PEgravity and KE for our experimental trials. Do the calculations on the last pages of the laboratory. TABLE 5. POTENTIAL ENERGY AND KINETIC ENERGY POTENTIAL HEIGHT KINETIC DISTANCE Mass M ENERGY NUMBER ENERGY Velocity H (m) d (m) (kg) (JOULES) (JOULES) ( m/ s ) 1 0. 3 24 0.972 10104654 1.755 2 0. 324 0. 872 10. 02364 1. 7124 3 U. 324 0.518 0. 06654 1. 739 0. 32 4 0. 518 10 0 2364 1. 703 5 0.237 0. 872 0. 06654 1. 4 78 6 0 237 0 . 872 0 02364 1. 4 3 6 7 -1: 237 0578 0 06654 1. 409 8 0. 237 05 78 0 02364 1.435 Calculate the percent useful energy of the system PUE: PUE = Percent Useful Energy = KE X 100 PE C Calculate the loss of PE of gravity to thermal energy as the ball rolls along the track. Use the fol- lowing to find the loss of energy LE: LE = Loss of Energy = PEgravity - KE

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