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Bond [772]
4 years ago
14

Air flows along a horizontal, curved streamline with a 20 foot radius with a speed of 100 ft/s. Determine the pressure gradient

normal to the streamline.

Engineering
1 answer:
shusha [124]4 years ago
5 0

Answer:

- 1.19 lb/ft^3

Explanation:

You are given the following information;

Radius r = 20 ft

Speed V = 100 ft/s

You should use Bernoulli equation pertaining to streamline. That is, normal to streamline.

The pressure gradient = dp/dn

Where air density rho = 0.00238 slugs per cubic foot.

Please find the attached files for the solution and diagram.

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AysviL [449]

Answer:

Absorb

Explanation:

Compared to a white car, a black car is a black object that absorbs light and all colors without reflecting any compared to white. When black objects absorbs all the energy from colors around them they would then become hot, the objects would then release some of this heat energy into the air. So in a nutshell, the black car absorbs all the light that would hit it and then it would convert it to heat

3 0
3 years ago
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Using data in Appendix A ,calculate the number of atoms in 1 tonne of iron
maksim [4K]
<h2>Answer:</h2>

1.0783*10^{28}(atoms).

<h2>Explanation:</h2>

<em>Since I don't have access to "Appendix A", I'll solve the problem using data from the periodic table.</em>

<em />

<h3>1. Determine the molar mass of iron.</h3>

<em>According to the periodic table, the molar mass of iron is:</em>

55.845g/mole.

<h3>2. Convert 1 tonne to grams.</h3>

1(tonne)*1000=1000kg\\1000kg*1000=1000000g=10^6g

<h3>3. Apply rule of 3.</h3>

55.845g ----------- 1 mole

10^6g ----------- x

x=\frac{10^6*1}{55.845}=17906.7061(moles)

<h3>4. Determine the amount of atoms.</h3>

<em>Considering that there are, approximately, </em>6.022*10^{23} atoms in a mole of any element, apply another rule of 3.

1 mole --------------------- 6.022*10^{23}(atoms)

17906.7061(moles) --------------------- x

x=\frac{17906.7061*6.022*10^{23}}{1}=1.0783*10^{28}.

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7 0
3 years ago
A tank has a gauge pressure of 552 psi. The cover of an inspection port on the tank has a surface area of 18 square inches. What
Reptile [31]

Answer:

44197.55 N

Explanation:

From the question,

Pressure of the pressure guage (P) = Total force experienced by the cover (F)/Area of the cover (A)

P = F/A................ Equation 1

make F the subeject of the equation

F = P×A............... Equation 2

Given: P = 552 psi = (552×6894.76) = 3805907.52 N/m², A = 18 square inches = (18×0.00064516) = 0.01161288 m²

Substitute these values into equation 2

F = ( 3805907.52×0.01161288)

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3 0
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What is the most embarrassing thing that has happened to you its OK no judging
Sav [38]

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