Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
5th Edition
ISBN: 9780134402628
Author: Douglas C. Giancoli
Publisher: PEARSON
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A woodpecker's brain is specially protected from large accelerations by tendon-like attachments inside
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0.600 m/s in a distance of only 2.00 mm. Find the acceleration in meters per second squared and in
multiples of g, where g = 9.80 m/s².
Professional Application: A woodpecker’s brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker’s head comes to a stop from an initial velocity of 0.600 m/s in a distance of only 2.00 mm. (a) Find the acceleration in and in m/s multiples of g (g = 9.80 m/s). (b) Calculate the stopping time. (c) The tendons cradling the brain stretch, making its stopping distance 4.50 mm (greater than the head and, hence, less deceleration of the brain). What is the brain’s deceleration, expressed in multiples of ?
An indestructible bullet 2.00 cm long is fired straight through a board
that is 10.0 cm thick. The bullet strikes the board with a speed of 470
m/s and emerges with aspeed of 265 m/s. (To simplify, assume that
the bullet accelerates only while the front tip is in contact with the
wood.)
(a) What is the average acceleration of the bullet through the board?
m/s2
(b) What is the total time that the bullet is in contact with the board?
(Enter the total time for the bullet to completely emerge from the
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Chapter 2 Solutions
Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
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