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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

If the pressure reading of your pitot tube is 15.0 mm Hg at a speed of 200 km/h, what will it be at 700 km/h at the same altitude?

To determine

The pressure reading of pilot tube at speed of 700 km/h at the same altitude.

Explanation

Given:

Initial pressure =P1=15.0 mm of Hg = (15.0 mm of Hg ) (133 Pa1 mm of Hg)=1995 Pa

Final pressure =P2

Density of air =ρ=1.29kgm3

Initial speed =v1=200 kmh=200 kmh (1000 m1 km)(1 h3600 s)=55.6 ms

Final speed =v2=700kmh=700kmh(1000 m1 km)(1 h3600 s)=194.4 ms

Formula Used:

Pressure at same level using Bernoulli's theorem is given as,

  P+ρgh+(0.5)ρv2=constanthence, since height is same , we get P1+(0

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