Given that a projectile is fired at an angle theta to the horizontal with initial velocity U. If g=acceleration due to gravity find the expression for the horizontal distance X and the vertical height H travelled after a time T.​

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.)

increase masses, decrease separation