C. Co Identify Copy and fill in a graphic organizer like the one below to identify several uses of electromagnetic waves. edib250 lliw sidiriks Uses of Electromagnetic Waves nplees uoverbo 1 pega oitenparne Joa sl ی

For the waveform below (#1-#3), i (mA) 20 10- 10 15 20 25 30 35 40 45 50 t (ms) -10 -20 1. What is the peak-to-peak value? a. 20mA b. 40mA C. OmA d. 20A e. 40A

I Review I Constants I Periodic Table A radio antenna broadcasts a 1.0 MHz radio wave with 20 kW of power. Assume that the radiation is emitted uniformly in all directions. Part A What is the wave's intensity 35 km from the antenna? Express your answer in watts per meter squared.

Please help me with these questions An antenna broadcasts 600 MHz waves.  a. What is the wavelength of these waves? b. You are standing 1.0 m from the antenna with an instrument that can detect the intensity of these waves.  Describe as quantitatively as you can how the intensity you detect changes as you move away from the antenna to a distance of 10.0 metres. A second antenna broadcasting identical 600 MHz waves is placed 4.0 metres from the first one.  c. What is the phase difference between these two waves at the midpoint between the antennas?  d. You walk around the two antennas in a circle of radius 20 m with its centre at the midpoint between the two antennas.  How many maxima will you detect?