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Unformatted text preview: to Q(1, 2, 3). Find the work done. Do: 1. Let a = 10 , 11 , 2 b = , 3 , 4 a. Find a ⋅ b . b. Find the cosine of the angle between a and b . c. Find the vector projection of a onto b . 2. Find the work done by a force of 20 pounds acting in the direction N 30 o W in moving an object 4 feet due west. 3. Are the following vectors orthogonal, parallel or neither? a . u = 2 , 1 , 5 v = 4 , 2 , 1 b . u = 2 , 1 , 5 v = 4 , 2 , 10 c . u = 2 , 1 , 5 v = 4 , 2 , 2...
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 Fall '08
 DONTREMEMBER
 Linear Algebra, Geometry, Angles, Vectors, Scalar, Vector Space, Dot Product, Force, Euclidean vector

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