Problem: A fire hose held near the ground shoots water at a speed of 5.5 m/s. At what angles should the nozzle point in order for the water to land 3.0 m away?I really don't understand how to solve this problem. Normally, I would separate the initial velocity into its x and y components, but I can't do that without the angle. If someone could help me out, I would greatly appreciate it.
As some of your answerers have shown, the phenomenon is governed by too many unknown and unpredictable factors to be of much use to mankind at the moment. The energy and resources needed for this type of 'energy alchemy' can be better devoted to more feasible projects like nuclear fusion which promise trully unlimited supplies of energy to mankind. And talking about energy storage and utilization, my information is that if we could somehow store all the energy radiated from the sun in one second and release it as and when needed, it could supply all of mankind's energy needs for 500,000 years! Worth trying that one?
