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nikklg [1K]
3 years ago
14

An airplane is cruising at an altitude of several kilometers. The pressure outside the craft is 0.258 atm within the passenger c

ompartment the pressure is 1.00 atm and the temperature is 20∘C. The density of air is 1.20 kg/m3 at 20∘C and 1 atm of pressure. A small leak occurs in one of the window seals in the passenger compartment. Model the air as an ideal fluid to find the speed of the stream of air flowing through the leak.

Physics
1 answer:
garik1379 [7]3 years ago
8 0

Answer:

<em>The speed of the stream of air flowing through the leak is 340.754 m/sec</em>

Explanation:

Carefully applying the Bernoulli's equation the speed of the leak can be obtained. The attached images show step by step explanation of the question, while applying the Bernoulli's equation;

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Using the Equation:
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where,
v = final velocity 
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s = distance 

<span><span>We know that vi = 0 because the ball was at rest initially.
</span><span>
Therefore,

Solving Eq.1 for acceleration,
 
</span></span> v² = vi² + 2 · a · s
 v² = 0 + 2 · a · s
 v² = 2 · a · s
Rearranging for a,
a = v ²/2·<span>s
Substituting the values,
a = 46</span>²/2×1<span> 
a = 1058 m/s</span>² 

<span>Now applying Newton's 2nd law of motion,
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<span>F = ma
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F = 153.4 N</span>
8 0
3 years ago
A ______________ is very general in nature, while a ________________ specifies what we want to study more specifically, suggesti
vova2212 [387]

Answer:

research topic and research question (hypothesis)

Explanation:

6 0
3 years ago
During heavy rain, a section of a mountainside measuring 2.5 km horizontally, 0.80 km up along the slope, and 2.0 m deep slips i
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Answer:

The mass of the mud is 3040000 kg.

Explanation:

Given that,

length = 2.5 km

Width = 0.80 km

Height = 2.0 m

Length of valley = 0.40 km

Width of valley = 0.40 km

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Area = 4.0 m²

We need to calculate the mass of the mud

Using formula of density

\rho=\dfrac{m}{V}

m=\rho\times V

Where, V = volume of mud

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Put the value into the formula

m=1900\times4.0\times0.40\times10^{3}

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3 years ago
1. Impulse is the product of force and distance. True or false?
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Answer:

Explanation:

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2. F = m g

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   statement 2 is false.

3. Joule is equal to Newton times meter.

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4. Work done to lift an object is correct statement.

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I think C but not sure
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