Two additional factors that will increase impact are flow rate and pressure. As shown in the image below, Nozzle A and B are placed at the same distance and the flow rate is the same. However, the pressure for Nozzle B is greater than Nozzle A and results in higher impact at the target area.
Now consider, Nozzle A and C in the image below, which are placed at the same distance and have the same pressure. However, the flow rate in this scenario for nozzle C is greater and results in higher impact at the target area. Increasing flow rate and/or pressure at the same distance will provide greater impact on the target area.