What is the frequency of infrared light emitted by an LED in a remote control with a wavelength of 906 nm if the speed of light is given as c= 3.00 x 108 m s-1. Give your answer in Hz to an appropriate number of significant figures.

Calculate the energies of the following waves (in kilojoules per mole) An FM radio wave at 96.5 MHz and an AM radio wave at 1100 kHz Enter your answers numerically separated by a comma. ΕΧΕΙ ΑΣΦΑ EPM, EAM 1.06 10-47,1.21 10-49 Submit ° Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ▾ Part B ? kJ/mol An X ray with 3.40×10-9 m and a microwave with A=6.67×10-2 m. Enter your answers numerically separated by a comma. ΜΕ ΑΣΦ 0 ? 49 Ex-ray, Eairo 9.71 10 40,4.95 101 Submit Previous Answers Request Answer remaining kJ/mol

If the RMS magnetic field strength of a sinusoidal plane EM wave is 0.368 millitesla, what is the average pressure it would impose on a reflective surface? N/m2 is the appropriate unit of measurement.

Write equations for both the electric and magnetic fields for an electromagnetic wave in the red part of the visible spectrum that has a wavelength of 709 nm and a peak electric field magnitude of 2.6 V/m. (Use the following as necessary: t and x. Assume that E is in volts per meter, B is in teslas, t is in seconds, and x is in meters. Do not include units in your answer. Assume that E = 0 and B = 0 when x = 0 and t = 0.) E(x, t) B(x, t) = =