Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 76EAP
An object moving in a liquid experiences a linear drag force:
a. Find an algebraic expression for vx(t), the x-component of velocity as a function of time, for a spherical particle of radius R and mass m that is shot horizontally with initial speed v0through a liquid of viscosity ?.
b. Water at 20°C has viscosity ? = 1.0 × 10-3 N s/m2. Suppose a 4.0-cm-diameter, 33 g ball is shot horizontally into a tank of 20°C water. How long will it take for the horizontal speed to decrease to 50% of its initial value?
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A skier gliding across the snow at 3.0 m/s suddenly starts down a 10° incline, reaching a speed of 15 m/s at the bottom. Friction between the snow and her freshly waxed skis is negligible.a. What is the length of the incline?b. How long does it take her to reach the bottom?
A
r
The speed of a boat in still water is V. A river flows with a speed of v₁. The boat travels distance of 14
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Chapter 6 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
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9. The four balls in FIGURE Q6.9 have been...Ch. 6 - Prob. 10CQ
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