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        "intro": "Formulae are used frequently in almost all aspects of engineering in order to relate a physical quantity to one or more others. Many well-known physical laws are described using formulae. For example, you may have already seen Ohm\u2019s law, \\(v = iR\\), or Newton\u2019s second law of motion, \\(F = ma\\). In this Quiz we describe the process of evaluating a formula, explain what is meant by the subject of a formula, and show how a formula is rearranged or transposed. These are basic skills required in all aspects of engineering.\n",
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