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Math Help - investigation question (powers and exponents)

  1. #1
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    investigation question (powers and exponents)

    hello there i am new to the board, i have been trying to solve this all morning and haven't come to a recognisable conclusion, wonder if anyone could try giving me some help on how to carry out a question like this, i am doing gcse maths
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  2. #2
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    Re: investigation question (powers and exponents)

    Quote Originally Posted by benh1995 View Post
    hello there i am new to the board, i have been trying to solve this all morning and haven't come to a recognisable conclusion, wonder if anyone could try giving me some help on how to carry out a question like this, i am doing gcse maths
    From our SI Prefixes we know that 1kHz = 1000 Hz

    To find \lambda use the formula given in the question. If you get stuck post what you've tried
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    Re: investigation question (powers and exponents)

    I have no clue where to start at all, I need some sort of explanation to this, my understanding of this is poor..

    a. what is ms in the speed formula ?
    b. how do I work out Hz ?
    c. how do I work out the wavelength in metres ?
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  4. #4
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    Re: investigation question (powers and exponents)

    Quote Originally Posted by benh1995 View Post
    I have no clue where to start at all, I need some sort of explanation to this, my understanding of this is poor..

    a. what is ms in the speed formula ?

    units of speed ... ms^{-1} which is \frac{m}{s} (meters per second)

    b. how do I work out Hz ?

    f = \frac{v}{\lambda} where v is in m/s and \lambda is in m

    c. how do I work out the wavelength in metres ?

    from the given formula for \lambda
    ...
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    Re: investigation question (powers and exponents)

    ok thankyou for that i'll give it a try
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