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VikaD [51]
4 years ago
9

What is 1000J in Btu?

Engineering
2 answers:
Strike441 [17]4 years ago
6 0

1 BTU = 1055.06 joules **

(1000 J) x (1 BTU / 1055.06 J) = <em>0.9478 BTU</em>

<em></em>

** Note:  You'll have to accept my conversion factor, since I went and looked it up and you didn't.

dybincka [34]4 years ago
5 0

Answer:

0.948 Btu

Explanation:

1 Btu = 1055 J so \frac{1000}{1055} = 0.948 Btu

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Using the Breguet range and endurance equation, estimate the amount of kerosene
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The amount of kerosene fuel needed for an aircraft weighing 10 metric tons to fly from Boston to Los Angeles, assuming a distance of 5,000 [km] is 10000 kg.

<h3>What is Breguet equation?</h3>

Breguet equation is used to determine the range of airplane fly in some specified set of parameters.

R=\dfrac{h_f}{g}\dfrac{L}{D}\times \eta \ln \left(\dfrac{W_{initial}}{W_{final}}\right)

Here, (L/D) is lift to drag ratio,<em> g</em> is gravitation acceleration,<em> h </em>is height and <em>W</em> is weight.

The weight of aircraft is 10 metric tons (this is the dry weight that includes passengers and cargo)  The distance of 5,000 [km], with velocity at 300 [m/s]  from Boston to Los Angeles has to be cover by the airplane.

The initial weight is 10 metric tons or 10000 kg. Thus, the final weight with total fuel burn is,

W_{final}=W_{initial}-W_{fuel}\\W_{final}=1-\dfrac{W_{fule}}{W_{initial}}

The lift-to-drag ratio is 15 and the overall efficiency is 0.3,  The standard air density at an altitude of approximately 6,000 [m] is half.

Thus, put the values, in above formula,

5000=\dfrac{6000}{9.81}(15)\times(0.3) \ln \left(\dfrac{10000}{1-\dfrac{W_{fuel}}{10000}}}\right)\\

\ln \left(\dfrac{10000}{1-\dfrac{W_{fuel}}{10000}}}\right)=1.8167\\\ln \left(\dfrac{1}{10000-W_{fuel}}}\right)=1.8167

Solving this equation, we get,

W_{fuel}=10000\rm\; kg\\

Thus, the amount of kerosene fuel needed for an aircraft weighing 10 metric tons to fly from Boston to Los Angeles, assuming a distance of 5,000 [km] is 10000 kg.

Learn more about the Breguet equation here:

brainly.com/question/15218094

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2 years ago
At what distance should the warning triangle be placed if a vehicle breaks down on the autobahn?
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The answer is 200 Meters

Explanation:

At what distance should the warning triangle be placed if a vehicle breaks down on the autobahn?

200 Meters

The Autobahn is the federal controlled-access highway system in Germany. The official German term is Bundesautobahn, which translates as "federal motorway". The literal meaning of the word Bundesautobahn is "Federal Auto Track".

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4 years ago
"How would you direct traffic in the result of a catastrophic earthquake?"
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Answer:

In the result of a earthquake, you should direct people into areas that are safe, such as places where the ground has not been broken up, and then tell people to get out of their cars and be careful. You should also have them carry any valuable items out of the car(if they have time), and then wait until the initial shocks and aftershocks are over, and then tell them to get back into their cars and then drive carefully and safely.

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C

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On the other hand Pitot tube measure the dynamic pressure.

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