An object of mass 30 kg is falling in air (a = g = 9.8 m/s²) and experiences a force due to air resistance of 50 Newtons. 1. Determine the net force acting on the object
2. Calculate the acceleration of the object.

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

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