- Calculate frequency of a photon with energy of 3.45 x 10-21?

Discover Questions

If we used Einstein field equation of gravity field how far of would it be if we used Newton gravity field equation,to know gravity in space? Can I run an inverter type welder, rated at 3 Ph, 400V (for Europe), with 3Ph, 460V power, which is available in the United States? Since the earth is moving and galaxies are moving how did Hubble calculate the red shift in the frequency of light? What is Typology of deviant officers? Define the rank and nullity of a linear mapping?