Calculate the first overtone in an ear canal, which resonates like a 2.40-cm-long tube closed at one end, by taking air temperature to be 37.0C . Is the ear particularly sensitive to such a frequency? (The resonances of the ear canal are complicated by its nonuniform shape, which we shall ignore.)
Elementary Classical Physics 1 Notes Weeks 1-2 Chapter 1: Doing Physics Nature of Science: Observations- first step toward theory; requires imagination to tell what is important. Theories-explain observations. From theories we can make predictions Observations tell if predictions are accurate Predictions agree better with data Explain greater range of phenomena Physics is the most basic science. Deals with the behavior and structure of matter. Models are used to understand phenomena Theory- detailed explanation and leads to testable predictions Law-describes how nature behaves in a broad set of circumstances Principle-similar to law except applied to narrow range of phenomena 1.1 Realms of Physics Physics includes: Optics, Mechanics, Electromagnetism, Thermodynamics, Modern Physics, and Oscillations, Waves, and Fluids 1.2 Measured Units Fundamental Quantities (SI units) used to measure data Length (m) meter Time (s) second Mass (g) gram Electrical current (amp) ampere Temperature (K) Kelvin Amount of substance (mol) mole Luminous intensity (cd) candela Plane angle (rad) radians Solid angle (sr) steradian Kilo Hecto Deca Unit Deci Centi Mili 10^3 10^2 10^1 10^-1 10^-2 10^-3 Changing Units Use conversion factors (front cover of textbook) 1.3 Scientific Notation Uses power of 10 for very large or very small numbers i.e 3560000000 m = 3.56*10^9 m Significant figures Estimated uncertainty ± (i.e
