Electromagnetic waves Demonstrations
... If the antenna in the figure represents the source of a distant radio station, rank the following points in terms of the intensity of the radiation, from greatest to least: (1) a distance d to the right of the antenna (2) a distance 2d to the left of the antenna (3) a distance 2d in front of the ant ...
... If the antenna in the figure represents the source of a distant radio station, rank the following points in terms of the intensity of the radiation, from greatest to least: (1) a distance d to the right of the antenna (2) a distance 2d to the left of the antenna (3) a distance 2d in front of the ant ...
MATH 20550 - Calculus III Notes 3 September 15, 2016 13.3 Arc
... 1. Given a curve that has the vector equation r(t) = hf (t), g(t), h(t)i, a ≤ t ≤ b, where f 0 , g 0 , h0 are continuous. If the curve is traversed exactly once as t increases from a to b, then its length is given by Zt=a L= |r0 (t)| dt. t=b ...
... 1. Given a curve that has the vector equation r(t) = hf (t), g(t), h(t)i, a ≤ t ≤ b, where f 0 , g 0 , h0 are continuous. If the curve is traversed exactly once as t increases from a to b, then its length is given by Zt=a L= |r0 (t)| dt. t=b ...
Atmospheric Dynamics
... with a rigid surface Example: excess drag on one side of a spinning baseball causes a net force (in this case, on the ball) in that direction – “STRIKE ONE!” Pressure Gradient – motion ensues from high-pressure to low-pressure under this force Example: fill your hose, set it on the ground, step on o ...
... with a rigid surface Example: excess drag on one side of a spinning baseball causes a net force (in this case, on the ball) in that direction – “STRIKE ONE!” Pressure Gradient – motion ensues from high-pressure to low-pressure under this force Example: fill your hose, set it on the ground, step on o ...
Density of states
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In solid-state and condensed matter physics, the density of states (DOS) of a system describes the number of states per interval of energy at each energy level that are available to be occupied. Unlike isolated systems, like atoms or molecules in gas phase, the density distributions are not discrete like a spectral density but continuous. A high DOS at a specific energy level means that there are many states available for occupation. A DOS of zero means that no states can be occupied at that energy level. In general a DOS is an average over the space and time domains occupied by the system. Localvariations, most often due to distortions of the original system, are often called local density of states (LDOS). If the DOS of an undisturbedsystem is zero, the LDOS can locally be non-zero due to the presence of a local potential.