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IrinaVladis [17]
3 years ago
12

The process of generation of force by the high speed that pushes the jet engine forward is based on Newton’s _____ law of motion

?
Engineering
2 answers:
jasenka [17]3 years ago
5 0

Answer:

The process of generation of force by the high speed that pushes the jet engine forward is based on Newton’s 2 law of motion ?

Explanation:

1, Newton’s first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force. This postulate is known as the law of inertia.

2,  

Newton’s second law is a quantitative description of the changes that a force can produce on the motion of a body. It states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it. The momentum of a body is equal to the product of its mass and its velocity. Momentum, like velocity, is a vector quantity, having both magnitude and direction. A force applied to a body can change the magnitude of the momentum, or its direction, or both.For a body whose mass m is constant, it can be written in the form F = ma, where F (force) and a (acceleration)

3, Newton’s third law states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.The third law is also known as the law of action and reaction. This law is important in analyzing problems of static equilibrium, where all forces are balanced, but it also applies to bodies in uniform or accelerated motion. The forces it describes are real ones, not mere bookkeeping devices. For example, a book resting on a table applies a downward force equal to its weight on the table. According to the third law, the table applies an equal and opposite force to the book.

shepuryov [24]3 years ago
5 0
Newton’s second law. I think
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Consider a Carnot heat-engine cycle executed in a closed system using 0.028 kg of steam as the working fluid. It is known that t
Paha777 [63]

Answer:

T=138 °C

Explanation:

Given that

m = 0.028 kg

Net work output W= 60 KJ

T₂=2T₁

As we know that efficiency of Carnot heat engine given as

\eta=1-\dfrac{T_1}{T_2}

\eta=1-\dfrac{T_1}{2T_1}

η = 0.5

We know that

\eta=\dfrac{W}{Q_a}

Qa=heat addition

W= net work output

\eta=\dfrac{W}{Q_a}

0.5=\dfrac{60}{Q_a}

Qa= 120 KJ

From first law

Qa= W+ Qr

Qr= 120 - 60

Qr= 60 KJ  

Qr Is the heat rejection.

Heat rejection per unit mass

Qr=60 / 0.028 = 2142.85 KJ/kg

Qr= 2142.85 KJ/kg

Temperature at which latent heat of steam is  2142.85 KJ/kg will be our answer.

T=138 °C

The temperature corresponding to 2142.85 KJ/kg will be 138 °C.

T=138 °C

8 0
3 years ago
A fluid flows through a 10-mm diameter tube at a Reynolds number of 1800. If the flow rate is 6.0 liters/min, what is the head l
Eddi Din [679]

Answer:

29.31 m

Explanation:

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Average velocity v=\frac{Q}{A}=\frac{10^{-4}}{7.854\times 10^{-5}}=1.372 m/sec

The given Reynolds number is 1800 which is less than 2000 so it will be a laminar flow

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3 years ago
What were the trade-offs and opportunity costs of one of Teasha’s economic decisions?
sergij07 [2.7K]

Answer:

Opportunity cost she loses the chance to get the degree. The trade- off is she gets to start a business.

Explanation:

3 0
3 years ago
This program will store roster and rating information for a soccer team. Coaches rate players during tryouts to ensure a balance
kari74 [83]

Answer:

Using C++ language

#include <iostream>

#include <vector>

using namespace std;

int main()

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//definition

vector<int> jerseyNumber;

vector<int> rating;

int temp;

//loop

for (int i = 1; i <= 5; i++)

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cout << "Enter player " << i

<< "'s jersey number: ";

cin >> temp;

jerseyNumber.push_back(temp);

cout << "Enter player " << i

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cin >> temp;

rating.push_back(temp);

cout << endl;

}

 

cout << "ROSTER" << endl;

 

for (int i = 0; i < 5; i++)

cout << "Player " << i + 1 << " -- "

<< "Jersey number: " << jerseyNumber.at(i)

<< ", Rating: " << rating.at(i) << endl;

char option;

'

while (true)

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cout << "MENU" << endl;

cout << "a - Add player" << endl;

cout << "d - Remove player" << endl;

cout << "u - Update player rating" << endl;

cout << "r - Output players above a rating"

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cout << "o - Output roster" << endl;

cout << "q - Quit" << endl << endl;

 

cout << "Choose an option: ";

cin >> option;

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cout << "Enter a new player's"

<< "jersey number: ";

cin >> temp;

jerseyNumber.push_back(temp);

cout << "Enter the player's rating: ";

cin >> temp;

 

rating.push_back(temp);

break;

case 'd':

case 'D':

cout << "Enter a jersey number: ";

cin >> temp;

int i;

for (i = 0; i < jerseyNumber.size();

i++)

{

if (jerseyNumber.at(i) == temp)

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jerseyNumber.erase(

jerseyNumber.begin() + i);

rating.erase(rating.begin() + i);

break;

}

}

break;

case 'u':

case 'U':

cout << "Enter a jersey number: ";

cin >> temp;

 

for (int i = 0; i < jerseyNumber.size();

i++)

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if (jerseyNumber.at(i) == temp)

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cout << "Enter a new rating "

<< "for player: ";

cin >> temp;

rating.at(i) = temp;

break;

}

}

break;

case 'r':

case 'R':

 

cout << "Enter a rating: ";

cin >> temp;

cout << "\nABOVE " << temp << endl;

for (int i = 0; i < jerseyNumber.size();

i++)

if (rating.at(i) > temp)

cout << "Player " << i + 1

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<< "Jersey number: "

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<< ", Rating: "

<< rating.at(i) << endl;

break;

case 'o':

case 'O':

cout << "ROSTER" << endl;

for (int i = 0; i < jerseyNumber.size();

i++)

cout << "Player " << i + 1 << " -- "

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case 'q':

return 0;

default: cout << "Invalid menu option."

<< " Try again." << endl;

}

}

}

6 0
3 years ago
A technician needs to check the heating operation of a heat pump that has no gauge access ports. The technician should start by:
OverLord2011 [107]

The technician should start by checking the temperature rise across the indoor coil.

<h3>Who is a technician?</h3>

This is a person who has skill in a particular area of job. A technician is responsible for repairs and also ensure different equipment and systems are working perfectly.

Hence, the technician should start by checking the temperature rise across the indoor coil.

Learn more about technician here : brainly.com/question/13315405

#SPJ1

7 0
2 years ago
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