HW11 - Thevalingam Donald – Homework 11 – Due midnight...

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Unformatted text preview: Thevalingam, Donald – Homework 11 – Due: Dec 15 2006, midnight – Inst: Eslami 1 This print-out should have 17 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points Vector ~ A has components A x =- 7 . 7 , A y = 8 . 5 , A z = 4 , while vector ~ B has components B x = 3 . 7 , B y =- 4 . 8 , B z = 6 . 4 . What is the angle θ AB between these vec- tors? (Answer between 0 ◦ and 180 ◦ .) Answer in units of ◦ . 002 (part 1 of 2) 10 points Consider the two vectors ~ M = ( a, b ) = a ˆ ı + b ˆ and ~ N = ( c, d ) = c ˆ ı + d ˆ , where a = 4, b = 4, c = 3, and d =- 3. a and c represent the x-displacement and b and d represent the y- displacement in a Cartesian xy co-ordinate system. Note: ˆ ı and ˆ represent unit vectors ( i.e. vectors of length 1) in the x and y directions, respectively. What is the value of the scalar product ~ N · ~ N ?...
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HW11 - Thevalingam Donald – Homework 11 – Due midnight...

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