Common Formulas

Area of a Circle

$$A = \pi r^2$$

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Pythagorean Theorem

$$a^2 + b^2 = c^2$$

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Newton’s Second Law

$$F = ma$$

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Kinetic Energy

$$KE = \frac{1}{2}mv^2$$

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Ohm’s Law

$$V = IR$$

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Ideal Gas Law

$$PV = nRT$$

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Molarity

$$M = \frac{n}{V}$$

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Simple Interest

$$I = Prt$$

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Compound Interest

$$A = P\left(1 + \frac{r}{n}\right)^{nt}$$

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Return on Investment (ROI)

$$ROI = \frac{\text{Gain} - \text{Cost}}{\text{Cost}}$$

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