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Math Help - Converting W to Wm-2

  1. #1
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    Converting W to Wm-2

    Can someone tell me how to convert watts into wm-2?
    cheers
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  2. #2
    A Plied Mathematician
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    Do you mean that you need to convert [W] into \left[\frac{W}{m^{2}}\right], where m is meters?

    If this is the case, then you're going to need to provide more context. What problem is this for? Can you state the problem statement exactly?
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  3. #3
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    If Akbeet is correct and you are trying to convert from Watts to "Watts per meter squared" then you need to divide by an area- "meters squared". You cannot convert a single number from "Watts" to "Watts per meter squared"- they measure different things. "Watts" is a measure of power and "Watts per meter squared" is a measure of the intensity of that power spread over some area.
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  4. #4
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    Hello, ohdearthisisheadrot!

    Can someone tell me how to convert watts into w/m^2 ?

    Isn't that the same as asking:

    . . How to convert miles into miles per hour?

    . . How to convert pounds into pounds per square inch?

    . . How to convert dollars into dollars per ounce?

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  5. #5
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    Or "how to convert dollars to pennies". I'd like to know how to do that!
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  6. #6
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    Hello, HallsofIvy!

    Quote Originally Posted by HallsofIvy
    Or "how to convert dollars to pennies". I'd like to know how to do that!

    I know you were just joking (and so was I),
    . . but your example isn't quite the same.

    You see, we know the conversion: .1 dollar = 100 pennies.
    . . So we can convert dollars to pennies.


    My example was: How to convert miles to miles per hour.

    Imagine! . "A car drove 200 miles. .What was its speed?"
    . .
    Silly, isn't it?


    Obviously, we need a "conversion".

    . . \begin{array}{cccccc}\text{For example:} & \text{200 miles} &=& \text{2.5 hours} \\<br />
\text{Then:} & \text{80 miles} &=& \text{1 hour} \end{array}

    . . And the car's speed is 80 miles per hour.



    Without a conversion, we can always ask unanswerable questions:

    . . A bottle of L'amour perfume costs $300.
    . . . . . What is its cost per ounce?

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