Question: Vector (vec{A}) points in the negative (y) direction and has a magnitude of 5. 0 units. Vector (vec{B}) has a positive (x) component of 3.

Vector $\vec{A}$ points in the negative $y$ direction and has a magnitude of 5. 0 units. Vector $\vec{B}$ has a positive $x$ component of 3. 0 units and a negative $y$ component of 7. 0 units.

(a) What is the angle between the vectors?

(b) Determine $\vec{A} \cdot \vec{B}$ .

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