In: Physics
1. When reaction mass was added in the lab, the rocket went higher, up to a point. But if there is less compressed air space, there is less total energy, e.g. with 400 ml there is air energy to LIFT the rocket to 203 feet. Explain. (Hint, what is heavier, water or air? Does mass stay constant?)
2. FINALLY, when you hold your thumb over the end of a garden hose, the jet goes farther. Based on what you learned in this lab, what must be happening?