an object is 70 um long and 47.66um wide. how long and wide is the object in km?​

Question

an object is 70 um long and 47.66um wide. how long and wide is the object in km?​

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Philomena 3 years 2021-07-25T12:35:48+00:00 1 Answers 4 views 0

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    2021-07-25T12:37:36+00:00

    Answer:

    length =  7*10^(-8)km

    width = 4.666*10^(-8) km

    Explanation:

    We know that:

    1 μm = 1*10^(-6) m

    and

    1km = 1*10^3 m

    or

    1m = 1*10^(-3) km

    if we replace the meter in the first equation, we get:

    1 μm = 1*10^(-6)*1*10^(-3) km

    1 μm = 1*10^(-6 – 3)km

    1 μm = 1*10^(-9)km

    Now with this relationship we can transform our measures:

    Length: 70 μm is 70 times 1*10^(-9)km, or:

    L = 70*1*10^(-9)km = 7*10^(-8)km

    And for width, we have 47.66um, this is 46.66 times 1*10^(-9)km, or:

    W = 46.66*1*10^(-9)km = 4.666*10^(-8) km

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