Differentials and Derivatives A. Letters u and v denote independent variables or functions of an independent variable; letters a and n denote constants. B. To obtain a derivative, divide both …

## Dimensional Analysis in Physics – Checking Answers

Dimensional analysis Dimensional analysis allows a quick check of your answer by seeing if the units are correct. An example would be if you are finding a distance by multiplying a speed by a time. …

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## Greek Alphabet

Greek letters surface all the time in physics, here are the 24 letters in capital and lower case, along with their names. Alpha α Α Beta β Β Gamma γ Γ Delta δ Δ Epsilon …

## Sound Level Terminology

Absorption Coefficient- Denoted by alpha (units of inverse meters) and "a" (dB/m). This constant measures the sound-absorbing ability of a material. The values go from about 0.01 for marble slate to …

## Golf Ball Physics

Golf Balls Have dimples on their surfaces to minimize drag (a force that dissipates when an object moves through a fluid). A smooth ball causes the air to flow in such a way that the air "sticks" to …