Please answer both parts, thanks. Would like an explanation! (9%) Problem 4: You

Question

Please answer both parts, thanks. Would like an explanation!

(9%) Problem 4: Your local AM radio station broadcasts at a frequency off-810 kHz. The electric-field component of the signal you receive at your home has the time dependence EC) Eo sin(27ft), where the amplitude is Eo -0.48 NC Radio waves travel through air at approximately the speed of light. A 50% Part (a) At what wavelength, in meters, does this station broadcast? Grade Summary Deductions 100% Potential Submissions sin0 Attempts remaining: 5 4 5 6 C% per attempt) detailed view 1 2 3 at ano acotano sinho cosh00 ntanh0 cotanh0 o Degrees O Radians Submit Hint I give up Feedback: 0% deduction per feedback. Hints: 0% deduction per hint Hints remaining 2 Aa 50% Part (b) What is the value of the radio wave's electric field, in newtons per coulomb, at your home at atime of t 2.8 us? All content 2017 Expert TA, LLC

Explanation / Answer

wavelength*frequency=velocity of wave

wavelength*810*103=3*108

wavelength=370.37 m

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