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sladkih [1.3K]
3 years ago
14

this one is hard is 20 trains can travel 600 miles 1 hour if 5 trains go at 1 am and the rest go at 4 am if they all need to tra

vel a total of 500000 miles but train 1 stops and train 19 speeds up what time will they all meet and what time will all trains have travel they're miles
SAT
1 answer:
katovenus [111]3 years ago
7 0
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The surface tension of water in air is approximately 0.00518 lbf/ft. if the atmospheric pressure is 14.7psia, what is the pressu
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Based on the calculations, the pressure inside this droplet is equal to 2,909.35 kPa.

<u>Given the following data:</u>

  • Surface tension = 0.00518 lbf/ft to N/m = 0.00702 N/m.
  • Atmospheric pressure = 14.7psia to kPa = 101.35 kPa.
  • Diameter = 0.01 mm to m = 0.00001 m.

Radius, r = \frac{diamter}{2} =\frac{0.0001}{2} = 0.000005 m.

<h3>How to determine the pressure inside a droplet.</h3>

For a droplet with only one surface, its pressure is given by this formula:

P_1-P_2=\frac{2 \tau}{r} \\\\P_1=\frac{2 \tau}{r}+P_2

Substituting the given parameters into the formula, we have;

P_1=\frac{2 \times 0.00702}{0.000005} + 101.35\\\\P_1=2808+ 101.35

Inside pressure = 2,909.35 kPa.

Read more on pressure here: brainly.com/question/24827501

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Answer: Your answer is <u>Sulfur dioxide or SO 2</u>

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