Hello. I need help with these questions.

1. I only need to know the intensity of the wave. I already answered everything else.

uni W N O position (cm) The position of a damped oscillator as a function of time is shown in the figure. -2 -3 -5 9 10 11 12 13 15 t (s) This function can be described by the x(t) = Age"Ytcos(wt) formula, where Ao is the initial amplitude, y is the damping coefficient and w is the angular frequency. What is the period of the oscillator? Please, notice that the function goes through a grid intersection point. Submit Answer Tries 0/99 Determine the damping coefficient. Submit Answer Tries 0/99The period of a mass-sprin oscillator is 2.81 s. Every time the oscillator completes a full period, the amplitude o the oscillation gets reduced to 93.6 percent of the previous amplitude. How much time does it take for the amplitude to decay to 49.? percent of its oriqinal initial value? The components of the electric field in an electromagnetic wave traveling in vacuum are described by EX = 0, Er = 0, and EI = 7.55 sin(6.99x - wt) Wm, where x is measured in meters and t in seconds. Calculate the frequency of the wave. 3.34x103 Hz You are correct. . - Your receipt no. is 164-5489 Ea) W Calculate the wavelength of the wave. 3.99:: 10-1 n1 You are correct. . - Your receipt no. is 164-5803 @a W Calculate the amplitude of the magnetic field of the wave. 2.52:: 10-3 T You are correct. . . Your receipt no. is 164-6654 o) W Calculate the intensitv of the wave. |:| Two antennas located at points A and B are broadcasting radio waves of frequency 97.0 MHz, perfectly in phase with each other. The two antennas are separated by a distance d= 12.40 m. An observer, P, is located on the x axis, a distance X: 78.0 rn from antenna A, so that APB forms a right triangle with PB as hypotenuse. What is the phase difference between the waves arriving at P from antennas A and B? A P I I t d i". B Il Tries W99 Now observer P walks along the x axis toward antenna A. What is P's distance from A when he first observes fully destructive interference between the two waves? % Tries 0x99 If observer P continues walking until he reaches antenna A, at how many places along the x axis (including the place you found in the previous problem) will he detect minima in the radio SIEHBI, due to destructive interference