A 0.2 kg hockey puck undergoes a slap shot moving 14 m/s to the left side of the goal. The goalie moves to stop the puck at 3 m/s to the left also. The goalie saves and blocks the shot and the puck collides into a
1.5 kg glove of the goalie and the glove with the puck both continue moving to the left. Calculate the
velocity of the glove and puck moving immediately after the collision.

i think it would be 5

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