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LAB B - LAB B Mehar Ghei LABORATORY EXPERIMENT REPORT Name...

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LAB B Mehar Ghei LABORATORY EXPERIMENT REPORT Name: Mehar Ghei Group Members: Nicole Tran, Yvonne Chen, Nakib Junayed Experiment Date: Tuesday, November 30 th , 2010 Course Name: PHYS 111A Section: H01 Instructor: Beidi He LABORATORY #B Simple Harmonic Motion 1. OBJECTIVE - To determine the spring constant k by stretching the spring and applying Hooke’s Law. - To verify that the period of vibration of a body on a spring is independent of the amplitude, and is given by: = T 2πmk - To measure the period T of a simple pendulum as a function of the length L of the pendulum and to verify that it is given by: = T 2πLg 2. THEORETICAL BACKGROUND =- F ks = F mg =- mg ks 3. EQUIPMENT The equipment used for both parts of this lab: Spring Masses Rods Meter stick Hanger Timer Page 1 of 5

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LAB B Mehar Ghei 4. COLLECTED DATA PART 1: y o =19 cm Hanger: 50g m (kg) Mg (N) y 1 (m) D=y 1 -y o (m) 0.05 0.49 0.19 0 0.15 1.47 0.197 0.007 0.2 1.96 0.215 0.025 0.25 2.45 0.254 0.064 0.3 2.94 0.274 0.084 0.35 3.43 0.294 0.104 0.4 3.92 0.314 0.124 0.45 4.41 0.335 0.145 0.5 4.9 0.355 0.165 Figure : Weight (N) vs. displacement (m) k= 21.394N/m PART 2: 300g+50g (hanger)
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