A tensioned 00 gauge power cable is whipped hard by a treebranch, causing a wave with an amplitude of 0.25 m to travel down it. If the tension in the line is 1500 N, the cable has a line denisty of 0.601 kg/m, and the wave that's created has a frequency of 5 Hz, how much kinetic energy is in the wave? 3. How much power is in the wave in problem 2?

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m

helium

oxygen

neon

sodium