# HW-CH3 - HW-CH3 9th edition CH3 Problems: 37, 41, 44, 60...

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Unformatted text preview: HW-CH3 9th edition CH3 Problems: 37, 41, 44, 60 8th edition CH3 Problems: 35, 39, 42, 68 ^ b ^ 37. Three vectors are given by ~ = 3:0^+ 3:0^ 2:0k, ~ = 1:0^ 4:0^+ 2:0k, and a { | { | ^ ~ = 2:0^+ 2:0^+ 1:0k. Find (a) ~ (~ ~), (b) ~ (~ +~), and (c) ~ (~ +~). c { | a b c a b c a b c 41. Use the de nition of scalar product, ~ ~ = ab cos ; a b and the fact that ~ ~ = ax bx + ay by + az bz a b to calculate the angle between the two vectors given by ~ = 3:0^ + 3:0^ + a i j ^ ^ 3:0k and ~ = 2:0^ + 1:0^ + 3:0k b { | ^ ~ ~ 44. In the product F = q~ B, take q = 2, ~ = 2:0^ + 4:0^ + 6:0k and F = v ~ v { | ^ What then is B in unit-vector notation if Bx = By ? ~ 4:0^ 20^ + 12k. { | 60. If ~ a ~ = 2~, ~ + ~ = 4~, and ~ = 3^ + 4^ then what are (a) ~ and (b) ~ ? b c a b c c i j, a b 1 ...
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## This note was uploaded on 05/14/2011 for the course ECON 101 taught by Professor Asdaf during the Spring '11 term at Universidad de San Buenaventura Bogota.

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