A Young's interference experiment is performed with tunable-dye laser light. The separation between the slits is 0.925 mm, and the interference pattern on a screen 3.30 m away shows the first maximum 2.25 mm from the center of the pattern. What is the wavelength of the tunable-dye laser 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.)

do you have a formula possibly