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Nimfa-mama [501]
2 years ago
13

Is a diesel truck less expensive to drive than a gas truck?

Engineering
1 answer:
MArishka [77]2 years ago
3 0

Answer:

Typically, diesel trucks cost more than those with gas engines, especially when you're first buying them, as diesel is usually featured as an add-on for gas-powered cars. Diesel add-ons can cost over $5,000 for midsize trucks and around $10,000 for heavy-duty trucks.

Explanation:

Make me brain pls

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A specimen of a 4340 steel alloy with a plane strain fracture toughness of 54.8 Mpa root m is exposed to a stress of 1030 MPa. W
cupoosta [38]

Answer:

It will not  experience fracture when it is exposed to a stress of 1030 MPa.

Explanation:

Given

Klc = 54.8 MPa √m

a = 0.5 mm = 0.5*10⁻³m

Y = 1.0

This problem asks us to determine whether or not the 4340 steel alloy specimen will fracture when exposed to a stress of 1030 MPa, given the values of <em>KIc</em>, <em>Y</em>, and the largest value of <em>a</em> in the material. This requires that we solve for <em>σc</em> from the following equation:

<em>σc = KIc / (Y*√(π*a))</em>

Thus

σc = 54.8 MPa √m / (1.0*√(π*0.5*10⁻³m))

⇒ σc = 1382.67 MPa > 1030 MPa

Therefore, the fracture will not occur because this specimen can handle a stress of 1382.67 MPa before experience fracture.

3 0
3 years ago
A 25-W compact fluorescent lightbulb (CFL) produces the light equivalent of a 100-W incandescent bulb. The population of North A
wariber [46]

Answer:

Coal required is 101 Teragram/year.

Coal saved is 25.25 Teragram/year.

Explanation:

1 Teragram is exactly 1000000000 kilograms.

8 0
3 years ago
Steam enters a turbine from a 2 inch diameter pipe, at 600 psia, 930 F, with a velocity of 620 ft/s. It leaves the turbine at 12
Katarina [22]

Answer:

\dot W_{out} = 3374.289\,\frac{BTU}{s}

Explanation:

The model for the turbine is given by the First Law of Thermodynamics:

- \dot W_{out} + \dot m \cdot (h_{in} - h_{out}) = 0

The turbine power output is:

\dot W_{out} = \dot m\cdot (h_{in}-h_{out})

The volumetric flow is:

\dot V = \frac{\pi}{4} \cdot \left( \frac{2}{12}\,ft \right)^{2}\cdot (620\,\frac{ft}{s} )

\dot V \approx 13.526\,\frac{ft^{3}}{s}

The specific volume of steam at inlet is:

State 1 (Superheated Steam)

\nu = 1.33490\,\frac{ft^{3}}{lbm}

The mass flow is:

\dot m = \frac{\dot V}{\nu}

\dot m = \frac{13.526\,\frac{ft^{3}}{s} }{1.33490\,\frac{ft^{3}}{lbm} }

\dot m = 10.133\,\frac{lbm}{s}

Specific enthalpies at inlet and outlet are, respectively:

State 1 (Superheated Steam)

h = 1479.74\,\frac{BTU}{lbm}

State 2 (Saturated Vapor)

h = 1146.1\,\frac{BTU}{lbm}

The turbine power output is:

\dot W_{out} = (10.133\,\frac{lbm}{s} )\cdot (1479.1\,\frac{BTU}{lbm}-1146.1\,\frac{BTU}{lbm})

\dot W_{out} = 3374.289\,\frac{BTU}{s}

6 0
3 years ago
A local zoo wants to keep track of how many pounds of food each of its three monkeys eats each day during a typical week. Write
Kryger [21]

Answer:

#include<iostream>

using namespace std;

int main()

{

  double data[3][5],avg,least,most,total;

  int leastNum,mostNum;

  for(int i=0;i<3;i++)

  {

      cout<<"Enter quantity of food for monkey "<<i+1<<":\n";

      for(int j=0;j<5;j++)

      {

          cout<<"Day "<<j+1<<": ";

          cin>>data[i][j];

      }

  }

  least = data[0][0];

  most = data[0][0];

  for(int i = 0;i<3;i++)

  {

      for(int j = 0;j<5;j++)

      {

          total+=data[i][j];

          if(data[i][j]>most)

          {

              most=data[i][j];

              mostNum=i+1;    

          }

          if(data[i][j]<least)

          {

              least=data[i][j];

              leastNum=i+1;

             

          }

      }

  }

  avg=total/5.0;

  cout<<"Average food eaten in a day by all the 3 monkeys: "<<avg<<endl;

  cout<<"Most amount of food eaten in a day: "<<most<<" by monkey: "<<mostNum<<endl;

  cout<<"Least amount of food eaten in a day: "<<least<<" by monkey: "<<leastNum<<endl;

  return 0;

}

6 0
4 years ago
What are minerals made of?
AURORKA [14]

Answer:

b hope it's help you heart me and please give brainlesst

3 0
3 years ago
Read 2 more answers
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