University:
Amherst College
Course:
MATH 121 | Intermediate Calculus
Academic year:

2008
Views:

448

Pages:

4
Author:

Brennen Smith

Q1.1 What are the x– and y–components of" the vector !E? A. Ex = E cos !, Ey = E sin ! B. Ex = E sin !, Ey = E cos ! C. Ex = –E cos !, Ey = –E sin ! D. Ex = –E sin !, Ey = –E cos ! E. Ex = –E cos !, Ey = E sin ! Q1.2 Consider the vectors shown. Which is a correct statement about ! ! A+ B? A. x–component > 0, y–component > 0 B. x–component > 0, y–component < 0 C. x–component < 0, y–component > 0 D. x–component < 0, y–component < 0 E. x–component = 0, y–component > 0 Q1.7 Consider the vectors shown. What ! ! is the dot product C • D? A. (120 m2 ) cos 78.0° B. (120 m2 ) sin 78.0° C. (120 m2 ) cos 62.0° D. (120 m2 ) sin 62.0° E. none of these Q1.9 Consider the two vectors ! A = 3iˆ + 4 ˆj ! B = !8iˆ + 6 ˆj ! ! What is the dot product A " B ? A. zero B. 14 C. 48 D. 50 E. none of these

Vector Operations: Practice Quiz

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