¿Cuál será el peso en la superficie terrestre de un cuerpo cuya masa es de 60 kg?

Responder: La fuerza en la luna es 1/6 de la fuerza gravitacional en la tierra. Si un cuerpo pesa 10 kilogramos en la luna, pesará 60 kilogramos en la tierra.

it was given as a lesson and guide for prayer.

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