answer in meters

How close would two stationary electrons have to be positioned so that their total mass is 8 times what it is when the electrons are very far apart?

answer in N/C and T

A laser emits 1.30 1018 photons per second in a beam of light that has a diameter of 1.82 mm and a wavelength of 514.5 nm. Determine average electric field strength and average magnetic field strength.

Find the maximum kinetic energy of the ejected electrons.

A magnesium surface has a work function of 3.68 eV. Electromagnetic waves with a wavelength of 215 nm strike the surface and eject electrons. Find the maximum kinetic energy of the ejected electrons. Express your answer in electron volts.

answer in nm

A proton is located at a distance of 0.410 m from a point charge of +8.30 µC. The repulsive electric force moves the proton until it is at a distance of 1.56 m from the charge. Suppose that the electric potential energy lost by the system is carried off by a photon that is emitted during the process. What is its wavelength?

answer in joules and eV

The K characteristic X-ray line for tungsten has a wavelength of 1.84 10-11 m. What is the difference in energy between the two energy levels that give rise to this line? Express in joules and eV