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Homework 18

# Homework 18 - lim(kl9356 Homework 18 Weathers(17104 This...

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lim (kl9356) – Homework 18 – Weathers – (17104) 1 This print-out should have 12 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A particle executes simple harmonic motion with an amplitude of 4 . 5 cm. At what positive displacement from the midpoint of its motion does its speed equal one half of its maximum speed? Answer in units of cm. 002 (part 1 of 3) 10.0 points A block of unknown mass is attached to a spring of spring constant 8 . 9 N / m and under- goes simple harmonic motion with an ampli- tude of 10 . 4 cm. When the mass is halfway between its equilibrium position and the end- point, its speed is measured to be 33 . 2 cm / s. Calculate the mass of the block. Answer in units of kg. 003 (part 2 of 3) 10.0 points Find the period of the motion. Answer in units of s. 004 (part 3 of 3) 10.0 points Calculate the maximum acceleration of the block. Answer in units of m / s 2 .

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