What fraction of the entire electromagnetic spectrum is spanned by visible light?.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

it is a negative acceleration

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests

the doppler effect is used by weather forecasters to measure 

moving clouds