When frequency of a sound goes down, a. the wavelength is shorter and pitch goes up b. the wavelength is longer and the pitch goes down c. the wavelength is longer and pitch goes up d. the wavelength is shorter and pitch goes down

B) The wavelength is longer and the pitch is lower

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.)

this is poiselle's equation from fluid mechanic in physics. mech eng