Sound waves travel at about 259 meters per second through gaseous carbon dioxide. they travel at about 1,162 meters per second through liquid ethanol. and they travel at 1,960 meters per second though solid lead. which of the following statements about electromagnetic waves is true? a. electromagnetic waves travel faster than sound waves through all media. b. electromagnetic waves travel faster than sound waves through gases but not through liquids. c. electromagnetic waves travel faster than sound waves through liquids but not through solids. d. sound waves travel faster than electromagnetic waves through all media.

Sound is a disturbance that travels through a medium as a

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Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x, y,t)along the plate at any time t. b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax