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Ugo [173]
3 years ago
14

The force that pushes against something traveling through a fluid is called

Physics
1 answer:
olganol [36]3 years ago
3 0

Viscous force is the force that pushes against something travelling through a fluid. Viscous force is an analogue in fluids(liquids or gases) of the force of friction. It acts opposite to the direction in which the object is moving relative to the fluid.

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g A large tank, at 400 kPa and 450 K, supplies air to a converging-diverging nozzle of throat area 4 cm2 and exit area 5 cm2. Fo
mariarad [96]

Answer:

A) ≥ 325Kpa

B) ( 265 < Pe < 325 ) Kpa

C) (94 < Pe < 265 )Kpa

D)  Pe < 94 Kpa

Explanation:

Given data :

A large Tank : Pressures are at 400kPa and 450 K

Throat area = 4cm^2 ,  exit area = 5cm^2

<u>a) Determine the range of back pressures that the flow will be entirely subsonic</u>

The range of flow of back pressures that will make the flow entirely subsonic

will be ≥ 325Kpa

attached below is the detailed solution

<u>B) Have a shock wave</u>

The range of back pressures for there to be shock wave inside the nozzle

= ( 265 < Pe < 325 ) Kpa

attached below is a detailed solution

C) Have oblique shocks outside the exit

= (94 < Pe < 265 )Kpa

D) Have supersonic expansion waves outside the exit

= Pe < 94 Kpa

7 0
3 years ago
He back window of this car contains a heating element.The heating element is part of an electrical circuit connected to the batt
Strike441 [17]
Um okay then????????????
7 0
3 years ago
2. (1) A piece of rubber is 50 cm long when a weight of
Harrizon [31]

Answer

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8 0
3 years ago
What is kinetic energy? Question 1 options: energy that is due to motion energy that is stored the mass of an object the rate at
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A source at rest emits light of wavelength 500 nm. When it is moving at 0.90c toward an observer, the observer detects light of
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Answer:

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(b) is correct option

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Given that,

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\lambda_{o}=\sqrt{\dfrac{c-0.90c}{c+0.90c}}\times500\times10^{-9}

\lambda_{o}=115\ nm

Hence, The observer detects light of wavelength is 115 nm.

8 0
3 years ago
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