PLZ HELP!!! PLZ PLZ PLZ PLZ PLZ PLZ!!!!!!!! I WILL GIVE SO MUCH POINTS!!!Complete the paragraph about kinetic energy. Use . Susa
1 answer:
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Answer:
Option C
Explanation:
Centripetal acceleration formula regarding velocity and radius is,
now we know the centripetal acceleration is 9 and the radius is 16 so we plug these values into our formula,
so velocity is 12 m/s
Now for the angular velocity, the formula of centripetal acceleration regarding angular velocity and radius is,
we know the centripetal acceleration is 9 and the radius is 16 so plug these values into the formula,
so angular velocity is 0.75 rad/s
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.