Explanation:
Initial speed of the incident water stream, u = 16 m/s
Final speed of the exiting water stream, v = -16 m/s
The mass of water per second that strikes the blade is 48.0 kg/s.
We need to find the magnitude of the average force exerted on the water by the blade. The force acting on an object is given by :

Here, 

So, the magnitude of the average force exerted on the water by the blade is 1536 N.
I’m sorry i haven’t found the answer to this
It's B because it talks about if it harms people. That would be an example of a medical/ethical issue.
Answer:
At- v 2 mis. Lj Ej dan suri cu uni Arapiati be nice. marina pisică care puntataare 5 2) L 3.D 2) W cm ds i)
Explanation:
I have no idea what you are trying to ask sorry