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23 April, 18:06

Part A

What are the dimensions of density, which is mass per volume? The dimensions of mass and length are abbreviated as [M] and [L] respectively.

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  1. 23 April, 18:34
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    Mass is easy to represent as simply [M]

    Volume is a quantity that exists only within 3 spatial dimensions. We'll need to take the cube of [L], which gives volume a dimension of [L]³

    Density is mass divided by volume, therefore divide [M] by [L]³

    The dimension of density is [M]/[L]³ or [M][L]⁻³
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