Physics II workshop_Part_49

Physics II workshop_Part_49 - Analysis over a very long...

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100 Analysis over a very long period You ought to find that total mechanical energy is almost exactly the same over a few cycles of oscillation. But what if we monitor the system over many, many cycles? Change the Experiment ->Data Collection parameters so that you measure 10 samples per second over a period of 180 seconds (yes, that's about 3 minutes). 10. Reset the system to equilibrium and re-zero the sensors 11. Pull the weight down about 5 cm and release it carefully. Wait about 30 seconds to let the wiggles dissipate. 12. Collect measurements over the long period. While you are waiting for this to finish, you might perform calculations for the previous portions of the experiment, or start writing your report. 13. Look at (and print) a graph of Total Energy versus Time. Is energy conserved over this long period? 14. What is the "half-life" of energy? That is, how long does it take for the total energy to decay to half its original value? 15.
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Physics II workshop_Part_49 - Analysis over a very long...

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