emily is spinning the back wheel of her bike to make sure it is balanced. she is using the pedal in order to spin the wheel. if the pedal has a torque of 1.38Nm and she is exerting a force of 2.3N what is the length of the lever arm?

Water flows through a garden hose which is attached to a nozzle. the water flows through hose with a speed of 2.19 m/s and through the nozzle with a speed of 19.8 m/s. calculate the maximum height (in m) to which water could be squirted if it emerges from the nozzle and emerges with the nozzle removed.