PHYS113_homework#7

# PHYS113_homework#7 - Department of Physics and Astronomy...

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Department of Physics and Astronomy University of Canterbury PHYS113-08S2 Homework #7, 2008 (for week of Sept 15-19) Attempt all questions in writing before you come to the tutorial. All problems will be discussed with your tutor in group sessions in the tutorials. Hand in your written work to receive credit for the homework. 1. A small object is attached to the end of a string to form a simple pendulum. The period of its harmonic motion is measured for small angular displacements and three lengths. For each length, the time interval for 50 oscillations is measured with a stopwatch. For lengths of 1.00 m, 0.75 m and 0.50 m, the total time intervals of 99.8 s, 86.6 s and 71.1 s are measured for 50 oscillations. (a) Determine the period of motion for each length. (b) Determine the mean value of the acceleration due to gravity, g, obtained from each of these three independent measurements, and compare the overall mean with the accepted value. 2.

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## This note was uploaded on 10/02/2008 for the course PHYS 113 taught by Professor Hearnshaw during the Spring '08 term at Canterbury.

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PHYS113_homework#7 - Department of Physics and Astronomy...

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