Vector magnitude:

$\overline{){\mathbf{\left|}}\stackrel{\mathbf{\rightharpoonup}}{\mathbf{A}}{\mathbf{\right|}}{\mathbf{=}}\sqrt{{{\mathbf{A}}_{\mathbf{x}}}^{\mathbf{2}}\mathbf{+}{{\mathbf{A}}_{\mathbf{y}}}^{\mathbf{2}}}}$

1. Given the vector A=4.00i+7.00j, find the magnitude of the vector

2. Given the vector B=5.00i−2.00j, find the magnitude of the vector.

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What scientific concept do you need to know in order to solve this problem?

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