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Unformatted text preview: In the next activity, we observed a pendulum that has been damped, and unlike a simple pendulum, a damped pendulums amplitude of oscillation changes with time due to friction. We observed that 77.9% of the energy was lost during each oscillation. Sources of error in this part could be attributed to air drag. In the last activity, an open pendulum was observed and it was concluded that a simple pendulum model cannot be used to describe the situation since, with an open pendulum no mass was attached and thus the percent difference between periods of observed and theoretical came to be 17%. This could have been attributed to air drag. Conceptual 1. No, the angular acceleration is not constant during motion but sinusoidal with amplitude. It can be equal to zero when the amplitude is zero. 2. The period equals 1.412 seconds....
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- Spring '09