MEDRADSC 1C03- Midterm Exam Guide - Comprehensive Notes for the exam ( 38 pages long!)
6 Oct 2017
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Wave number: k (number of cycles per meter) Angular frequency: (radians per second) y acos(2 ( x. Solution: use the waveform equation and write the expression for this wave. We can calculate the velocity with which wave crests are travelling. vwave x t. Velocity, frequency and wavelength of a wave are related. You count 17 complete waves pass a certain point in 120s and you measure 5. 50 m from a crest to a trough on the passing waves. A wave is defined as a disturbance that is self-sustained and propagates in space with a constant speed: mechanical waves. These involve motions that are governed (cid:271)(cid:455) newto(cid:374)"s laws a(cid:374)d (cid:272)a(cid:374) e(cid:454)ist o(cid:374)l(cid:455) withi(cid:374) a (cid:373)aterial (cid:373)ediu(cid:373) such as air, water, rock, etc. Common examples are sound waves, seismic waves, etc: electromagnetic waves. These waves involve propagating disturbances in the electric and magnetic field. They do not require a material medium in which to propagate but they travel through vacuum.
