Given that the wave yn = sin (2x - 50t) is superposed with the wave ym = sin (2x + 50t). Define: a) the equation for the deviation of the interference results b) The amplitude of the resultant wave.

Public television station KQED in San Francisco broadcasts a sinusoidal radio signal at a power of 316 kW. Assume that the wave spreads out uniformly into a hemisphere above the ground. At a home 4.00 km away from the antenna, what average pressure does this wave exert on a totally reflecting surface? Pau 2.10x10-11 Pa Submit Previous Answers Part B Correct At a home 4.00 km away from the antenna, what are the amplitudes of the electric and magnetic fields of the wave? Emaz. Bmaz 1.54,5.13×10-9 N/C,T Submit Previous Answers Part C Correct At a home 4.00 km away from the antenna, what is the average density of the energy this wave carries? Ο ΑΣΦ ? that = 3.77.109 Submit Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining Part D J/m³ For the energy density in part (c), what percentage is due to the electric field? 50.0 % Submit Previous Answers Part E Correct For the energy density in part (c), what percentage is due to the magnetic field? 50.0 % Submit Previous…

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The sound sources shown to the right are synchronized. a) Which two points have destructive interference? b) Is the amplitude necessarily zero at those points? If not, why? A D A с B

each gridline is 1 cm square and  wave traveling speed is1 cm/s.The end of the string at the blue line is free to move vertically. Find the velocity (speed and direction) of the particle of string located at the center of the leading segment of the wave at the moment depicted in the figure. As accurately as possible, sketch the wave 4 seconds after the moment captured in the figure.

Water waves from a source far to the left (not shown) travel in the rightward direction and disturb the height of the water by a maximum displacement A from the equilibrium level (dashed line). Mo the Marmot sits on a boat, which goes up and down as the traveling harmonic water wave passes by. Figure 1 shows a snapshot of this at some time. Figure 2 shows measurements of the vertical displacement from equilibrium, y, of Mo's boat as a function of time, which he recorded with his ioLab device. Figure 1 Figure 2 height [meters] y (meters) wave propagation direction At I (seconds] 2 3 4 -50 -40 -30 -20 -10 10 20 x (meters] What is the speed of the wave propagation? 60 m/s 1.1 m/s 6.7 m/s 42 m/s 260 m/s Which of the following equations best describes the displacement of the water surface from equilibrium, y, at a position a and a time t? y(x, t) = -A cos(kx – wt – 4) y(x, t) = -A cos(kx + wt + 4) %3D O y(x,t) = A cos(kæ + wt)

What steps would I take to better understand how D(x,t) = f(x - v t) + g(x + v t) could be a solution to the general wave equation?