Physics for Scientists and Engineers with Modern Physics, Technology Update
9th Edition
ISBN: 9781305401969
Author: SERWAY, Raymond A.; Jewett, John W.
Publisher: Cengage Learning
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Chapter 1, Problem 68AP
In physics, it is important to use mathematical approximations. (a) Demonstrate that for small angles (< 20°)
where α is in radians and α’ is in degrees. (b) Use a calculator to find the Largest angle for which tan α may be approximated by α with an error less than 10.0%.
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In physics, it is important to use mathematical approximations.(a) Demonstrate that for small angles (< 20°) tan a ≈ sin a ≈ a = (πa')/(180°)where a is in radians and a' is in degrees. (b) Use a calculator to find the largest angle for which tan a may be approximated by a with an error less than 10.0%.
Evaluate the cross product A×B if A = 39, B = 59 and θ = 43°.
Evaluate the cross product C×D if C = 23 and D = 83. The angle between them is a right angle.
Consider the vectors A = -2î + 5j –
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(c) Which give(s) the angle between the vectors? (Select all that apply.)
The answer to Part (a).
The answer to Part (b).
Chapter 1 Solutions
Physics for Scientists and Engineers with Modern Physics, Technology Update
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