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3 years ago

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Water at a gauge pressure of 3.8 atm at street level flows into an office building at a speed of 0.68 m/s through a pipe 5.4 cm

in diameter. The pipe tapers down to 2.5 cm in diameter by the top floor, 18 m above, where the faucet has been left open. (Figure 1)Calculate the flow velocity in the pipe on the top floor. Assume no branch pipes and ignore viscosity.
v=________

Part b: Calculate the gauge pressure in the pipe on the top floor. Assume no branch pipes and ignore viscosity. Express your answer using two significant figures.
p=________

1 answer:

Nataliya [291]3 years ago

7 0

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Direction=33.3 degree below the horizontal

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Mass of bullet, m=9.50 g= $9.50\times 10^{3} kg$

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Initial speed of stone, U=0

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$K_i=685.9 J$

Final kinetic energy

$K_f=\frac{1}{2}mv^2+\frac{1}{2}MV^2$

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$K_f=359.12 J$

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