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ranyai12

  • 3 years ago

Can someone please help!! (question is attached)

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  1. ranyai12
    • 3 years ago
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  2. oldrin.bataku
    • 3 years ago
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    Remember that the magnitude \(|\vec{a}|\) and dot product \(\vec{a}\cdot\vec{b}\) both operate on *vector(s)* to yield a *scalar*.

  3. ranyai12
    • 3 years ago
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    also just to double check, you cant multiply a vector and a scalar together right

  4. ranyai12
    • 3 years ago
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    so would first one be valid

  5. ranyai12
    • 3 years ago
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    im thinking its valid, valid,invalid, valid

  6. ranyai12
    • 3 years ago
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    am i right?

  7. ranyai12
    • 3 years ago
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    @oldrin.bataku

  8. oldrin.bataku
    • 3 years ago
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    The last is valid? Are you sure? It's a dot product between a scalar and vector.

  9. ranyai12
    • 3 years ago
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    oh no yr right its invalid

  10. ranyai12
    • 3 years ago
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    thank you!:)

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