College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A “blink of an eye” is a time interval of about 150 ms for an average adult. The “closure” portion of the blink takes only about 55 ms. Let us model the closure of the upper eyelid as uniform angular acceleration through an angular displacement of 14.0°. What is the tangential acceleration of the edge of the eyelid while closing if the radius of the eyeball is 1.25 cm?arrow_forwardA floppy disk rotates with a constant angular speed of 60.6 rad/s. Find the tangential speed at a point 0.073 m from the axis of rotation. What is the magnitude of the centripetal acceleration at this point?arrow_forwardGood day, can you please help me with this question. The magnitude of the resultant force acting on the bracket is to be 400 N. Determine the magnitudeof F1 if θ = 30°.arrow_forward
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