Recent content by Crauven

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    Undergrad Calculating the Dot Product: A*B

    I use both formulas, the first that Warren mentioned to get the answer, then i use the lazy way to check it. Thanks guys!
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    Undergrad Calculating the Dot Product: A*B

    I need some major help with some dot products. I was curious if when getting the dot product, you add the angles of each one to each other. I'll give the problem: theta=(/) Find A*B(dot product) A=8.6i+5j B=9.7i+2.6j So i used the formula my teacher gave me to find the angle, theta...
    • Crauven
    • Thread
    • Dot Dot product Product
    • Replies: 3
    • Forum: Mechanics
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    Equation that equates the magnitude of a vector

    Ahah! I won't fail my test! Thanks for the help.
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    Equation that equates the magnitude of a vector

    Oh I understand what you were saying. So its just, as per the ai+bj, a^2+b^2=the vector side^2? And is it just me or does three dimensional vector graphing really blow? :) Thank you.
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    Equation that equates the magnitude of a vector

    ... that's not what my question was. I need to know how to find the magnitude for a vector before my test today during fifth period...
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    Undergrad Energy required to accelerate a ship WITH ANTIMATTER

    That still does not remove the ongoing problem that we need some way to fuel it. Antimatter won't propel without a equal amount of matter correct? Matter has to then be fed into it, and there is only a limited amount of matter that one container to hold. So, what I am trying to get at, is though...
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    Equation that equates the magnitude of a vector

    I am in 11th grade, in AP Physics... its calculus based, and I have never had calculus so its confusing. At this time I cannot find the equation that equates the magnitude of a vector off of an ai+bj equation. Does anyone know?