The unit vector which is perpendicular to both r138ax+3ay-2az, * r2=2ax+7ay-6az is equal to a) 0.213ax - 0.345ay + 0.643az b) 1.063ax + 0.603ay + 0.794az c) 0.034ax-0.732ay + 0.794az d) -0.063ax + 0.603ay + 0.794az

Elementary Linear Algebra (MindTap Course List)
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Author:Ron Larson
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Chapter5: Inner Product Spaces
Section5.CR: Review Exercises
Problem 13CR
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Lai 13
The unit vector which is perpendicular to both r1=8ax+3ay-2az,
* r2=2ax+7ay-6az is equal to
a) 0.213ax - 0.345ay + 0.643az
b) 1.063ax + 0.603ay + 0.794az
c) 0.034ax-0.732ay + 0.794az
d) -0.063ax + 0.603ay + 0.794az
Lai 13
If the test charge is free to move, it will always move in the direction of
A. electric field intensity
B. electric field industry
C. electric field
D. electric shock
Transcribed Image Text:Lai 13 The unit vector which is perpendicular to both r1=8ax+3ay-2az, * r2=2ax+7ay-6az is equal to a) 0.213ax - 0.345ay + 0.643az b) 1.063ax + 0.603ay + 0.794az c) 0.034ax-0.732ay + 0.794az d) -0.063ax + 0.603ay + 0.794az Lai 13 If the test charge is free to move, it will always move in the direction of A. electric field intensity B. electric field industry C. electric field D. electric shock
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