The energy in a wave with length 3.45 x 10^-45 m is approximately 2.2837 x 10^-78 J.
The energy of a wave can be calculated using Planck's constant and the frequency of the wave. The formula for the energy of a wave is E = hf, where E is the energy, h is Planck's constant, and f is the frequency of the wave.
In this case, the frequency is given as 3.45 x 10^-45 m. To calculate the energy, we can substitute this value into the formula.
E = (6.626 x 10^-34 J-s) (3.45 x 10^-45 1/s) = 2.2837 x 10^-78 J.
Therefore, the energy in a wave with a length of 3.45 x 10^-45 m is approximately 2.2837 x 10^-78 J.