Crests Troughs S2

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…

please help with #8

The diagram below shows the wave crests for two sources that are totally in phase. For each of the labeled points, determine whether the light intensity (not the wave amplitude) is a minimum or a maximum. B S, Maximum Minimum Neither Submit Answer Tries 0/100

Draw a figure to show the resultant wave produced when two coherent waves (with equal amplitudes x) interact in phase. What is the amplitude of the resultant wave? If the phase difference between the coherent waves is changed to 60º, what will be new amplitude?

Please download the following worksheets, which show 4 separate grids. Each grid has two different waves (e.g., Wave and Wave B). Your goal is to draw the resulting wave (i.e., Wave C) if the two waves would have been superposed on top of each other. To do this, you'll need to add the two amplitudes (height of the Wave A and Wave B on the y-axis) at a given point on the x-axis to get the resulting one. For example, using number 3 as an example: a. At point 0 on the x axis, Wave A has an amplitude of 0, and Wave B has an amplitude of 0, so Wave C at point 0 would be 0. b. At point 4 on the x axis, Wave A has an amplitude of 6, and Wave B has an amplitude of 4, so Wave C at point 3 would have an amplitude of 10. c. At point 8 on the x axis. Wave A has an amplitdue of 0, and Wave B has an amplitude of -4, so Wave C at point 8 would be -4. You do not have to find the points for every single point along the x-axis, but just enough to get the general shape of the resulting wave. Once you…

There are 4 waves of wavelengths: λ1 = 10m, λ2 = = 620 × 10⁹m, 12 = 450 × 10¯⁹m, λ4 = 30 x 10-10m. The subscripts in the answer part follow the same rule as it was given for the wavelengths: 1 refers to the 1st wave, 2nd refers to the 2nd waves, 3rd refers to the 3rd wave, 4 refers to the 4th wave. Select all that apply: the 4th wave is an UV radiation. The 2nd frequency corresponds to the radio wave range. All the wavelengths correspond to the electromagnetic spectrum only one wavelength is part of the visible spectrum The radiation with the highest energy is the 1st wave. The radiation with the highest energy is the 4th wave. The relation between their frequencies is f₁ f2 > f3 < f4 The speeds of the waved depends on their wavelength. The 1st frequency corresponds to the radio wave range.

Options for question 1: A, B, C Options for question 2 and 3:  1/2, 1/4, 1, 2, or 4