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ΔU = qΔV. Voltage is not the same as energy. Voltage is the energy per unit charge. Thus, a motorcycle battery and a car battery can both have the same voltage (more precisely, the same potential difference between battery terminals), yet one stores much more energy than the other because ΔU = qΔV.
The constants listed here are known values of physical constants expressed in SI units; that is, physical quantities that are generally believed to be universal in nature and thus are independent of the unit system in which they are measured.
The letter u is used in physics to denote the sign of potential energy, as well as the initial velocity and the object distance in ray optics. In the equation v = u + a t , The initial velocity is u .
General equation of wave: @2y @x2 = 1 v2 @2y @t2. Notation: Amplitude A, Frequency , Wavelength , Pe-riod T, Angular Frequency !, Wave Number k, T= 1 = 2ˇ!; v= ; k= 2ˇ Progressive wave travelling with speed v: y=f(t x=v); +x; y=f(t+ x=v); x Progressive sine wave: 2 x y A y= Asin(kx !t) = Asin(2ˇ(x= t=T)) 2.2: Waves on a String
A list of physical constants that you will need to finish some of the computation problems in this book.
Page 1 Source: Peter J. Mohr and Barry N. Taylor, CODATA Recommended Values of the Fundamental Physical Constants: 2002, published in Review of Modern Physics 77, 1 (2005). From: http://physics.nist.gov/constants
