A state trooper’s car sends out a radar signal at a frequency of 11.5 GHz. Find the wavelength of this signal. The wave speed is 2.998 × 108 m/s. Answer in units of m.

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 714 nm and a peak electric field magnitude of 2.0 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) =

What is the maximum electric field strength (in kV/m) in an electromagnetic wave that has a maximum magnetic field strength of 6.20 ✕ 10−4 T (about 10 times the Earth's)?

The electric field of an EM wave in vacuum is given by En = 30 cos (27 × 10°t + 3); Ey = 0; Ez = 0; where E is in volts/meter, t in seconds, and x in meters. Determine the frequency f, the wavelength A, the direction of propagation of the wave, the direction and amplitude of the magnetic field.

a solar panel is a square 0.5m on a side and absorbs all the light that hits it. It the panel has a mass of 3 kg. what intensity of light would be necessary to hold it up against the force of gravity (its own weight)? how much bigger is this than the solar constant (1400 W/m^2)?

Scientists are working on a new technique to kill cancer cells by zapping them with ultrahigh-energy (in the range of 1.00×1012 W) pulses of light that last for an extremely short time (a few nanoseconds). These short pulses scramble the interior of a cell without causing it to explode, as long pulses would do. We can model a typical such cell as a disk 5.00 μm in diameter, with the pulse lasting for 4.00 ns with an average power of 2.00×1012 W. We shall assume that the energy is spread uniformly over the faces of 100 cells for each pulse. I 1.00×1021 W/m² Submit Previous Answers Part C Correct What is the maximum value of the electric field in the pulse? ΜΕ ΑΣΦ Emax Submit Request Answer Part D ? V/m What is the maximum value of the magnetic field in the pulse? ΜΕ ΑΣΦ Bmax = Submit Request Answer ? T

Find the wavelengths of electromagnetic waves with the following frequencies. (Assume the waves are traveling in a vacuum.) (a) 9.00 ✕ 1019 Hz (Enter your answer in pm.)   (b) 6.50 ✕ 109 Hz (Enter your answer in cm.)

What is the frequency of a microwave in free space whose wavelength is 1.65 cm?

A plane electromagnetic wave propagates in a vacuum in the -y-direction. The wave has a wavelength of 12 m, an angular frequency of 2.1e-9 s^-1 and the electric field is along the +x direction and has an amplitude of is 0.60 V/m. What is the mathematical expression for the magnetic field?

Your 5G phone is sending an RF signal at a wavelength of 5.72 mm. What frequency is the wave (in gigahertz = 1E9 Hz)?