4-68. At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, with an aver- age power of approximately 1.0 kJ.s-¹-m-². If the sun- light consists of photons with an average wavelength of 510 nm, how many photons strike a 1.0-cm² area per second?

need it fast!   In a hydrogen atom, an electron loses energy from n = 5 to n = 2, a process that leads to some kind of “interaction” with electromagnetic radiation.  What is the frequency of this light in Hertz? Do NOT include a sign with this answer. Rydberg's constant is equal to -2.179 x 10-18 J. Planck's constant is equal to 6.626 x 10-34 Joule-seconds. Express exponents as number followed by E followed by the power (e.g., 7.34E-12).

Cy-dye has multiple applications in biological imaging. The energy of the photons emitted by Cy-dye is 2.97 x 10-22 kJ. What is the wavelength (nm) of the emitted photons? Do not include the units and do not use scientific notation as part of your answer. (Thanks!)

A certain shade of blue has a frequency of 7.32×10^14 Hz. What is the energy of exactly one photon of this light? Planck's constant is ℎ=6.626×10^−34 J⋅s.

Given the relationship between wavelength, frequency and the speed of light, calculate the frequncy of a 508 nm photon. [109 nm = 1 m] Select one: 5.91 x 1013 s-1 5.91 x 10-5 s-1 5.91 x 1015 s-1 5.91 x 1014 s-1

| Calculate the energy of a photo of radiation with a wavelength of 2.53 x 10-8 m.

What is the wavelength, in nanometers, of light with a frequency of 2.40\ times 1015 Hz?

The energy of a particular color of green light is 3.78×1022 kJ/photon. The wavelength of this light is nanometers. (10° nm = 1 m)

What is the frequency of light (s^-1) that has a wavelength of 3.12 x 10^-13cm?

Microwave radiation falls in the wavelength region of 1.00×10-3 to 1.00 meters. What is the frequency of microwave radiation that has a wavelength of 0.883 m? Frequency =| |sec-!