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A hydrogen atom initially in its ground state (n=1) absorb a photon and ends up in the n=3 state.
what is the energy of the absorbed photon?
If the atom eventually returns to ground state, what photon energies could the atom emit?
Coherent light with wavelength 590 mm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 m from the slits.
An electromagnetic wave has an electric field amplitude of 325 V/m. What is the maximum magnitude of the Poynting vector of this wave
The wavenumber of the incident radiating in a Raman spectrometer is 20487 cm-1. What is the wavenumber of the scattered Stokes radiation
A copper [k = 390 J/(s·m·C°)] pipe with an outer radius of 0.014 m runs from an outdoor wall faucet into the interior of a house. Find the inner radius of the pipe
Find out the electric field at radius
a space station is a hollow cylinder of radius of 440m, that rotates to stimulate gravity by its centripetal acceleration. find the period of the rotation in seconds
If the activation energy for the vacancy formation is given as 0.77 eV for aluminium at (650 degrees Celcius) ^3, what would be the number of vacancies at 650 degrees Celsius? The atomic weight and the density of aluminium is 26.98 g/mol and 2.62 ..
A boulder has a volume of 1 m3 and a mass of 5000 kg. what will be the effective mass of the boulder
Two metal spheres, each of mass 14 g and initially at rest, are dropped from a height of 6 m in an evacuated chamber. Find the difference in final speeds of the two spheres
As you sit facing your computer screen, electrons are directed from a source at the back of the computer toward you and are deflected by a magnetic field. Which direction must the magnetic field be oriented in order to direct the electrons to the ..
A 25 g bullet strikes and becomes embedded in a 1.65 kg block of wood placed on a horizontal surface just in front of the gun, what was the muzzle speed of the bullet
Steam at 100°C is added to ice at 0°C. Find the amount of ice melted and the final temperature when the mass of steam is 11 g and the mass of ice is 53 g
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