Three charges are located at the vertices of a triangle, as shown. an isosceles triangle lying on its side. the two charges at the corners of the base of the isosceles triangle are labeled +5 c and +10 c. the top of the triangle is labeled +4 c with 4 vectors from it. the one east is labeled y, the one west is labeled w, the one northeast is labeled x and the one southeast is labeled z. which vector best represents the net force acting on the +4 c charge in the diagram? w x y z

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2

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