2 years ago

What does a “3-mile” radius mean? What does it look like, and how large is it?

1 answer:

5 0

Answer:

the radius is halfway across the circle, while diameter is all the way across. for reference, a three mile radius would be equivalent to 52.8 football fields

Step-by-step explanation:

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A fireman's water hose shoots 320 kg of water each second against the door of a building. The velocity of the water is 20 m/s an

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Answer:

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Step-by-step explanation:

$\dfrac{m}{t}$ = Mass flow rate of water = 320 kg/s

$m$ = Mass of water on the door

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$v$ = Velocity of water on the door = 20 m/s

Force is given by

$F=\dfrac{m}{t}v\\\Rightarrow F=320\times 20\\\Rightarrow F=6400\ \text{N}$

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