A vector \( \vec{A} \) points vertically upward and \( \vec{B} \) points towards north. The vect...

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A vector \( \vec{A} \) points vertically upward and \( \vec{B} \) points towards north. The vector product \( \vec{A} \times \vec{B} \) is
(1) zero
(2) along west
(3) along east
(4) vertically downward
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