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?

Two point sources produce waves in phase with the same amplitude and wavelength. The sources are a distance d apart. The distance from the right bisector to a point on the second nodal line is . The distance between the sources is cut in half. What is the new distance from the right bisector to the point on the second nodal line? a. (1)/(2)x_(2) b. x_(2) c. 2^(x_(2)) d. 4^(x_(2))

Question 1   Which question would be the BEST to ask to determine if a wave is an EM wave or a mechanical wave? A Does the wave contain energy?   B Does it require a medium to travel?   C Is it a longitudinal or transverse wave?   D Does the wave have a crest and trough?

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…