Components: If a vector 
has components Ax > 0, and Ay < 0, then the angle that this vector makes with the positive x-axis must be in the range
A. 0° to 90°.
B. 90° to 180°.
C. 180° to 270°.
D. 270° to 360°.
E. It cannot be determined without additional information.
Answer: D
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