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Zepler [3.9K]
4 years ago
13

Create a program that keeps track of student information at a college. The student information should include name, identificati

on number, and grade point average, with the unique identifier (key) for each student being the identification number. The implementation should be a binary search tree.

Engineering
1 answer:
Bas_tet [7]4 years ago
5 0

I'm finding it difficult to submit my answer.

Check the attachments below for answer and explanation

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The Leaning Tower of Pisa is located in which country? Question 1 options: France Italy The United States Norway
Ket [755]

Answer:

Tuscany, Central Italy

Explanation:

5 0
3 years ago
Read 2 more answers
A diesel engine with CR= 20 has inlet at 520R, a maximum pressure of 920 psia and maximum temperature of 3200 R. With cold air p
Stella [2.4K]

Answer:

Cut-off ratio\dfrac{V_3}{V_2}=6.15

Cxpansion ratio\dfrac{V_4}{V_3}=3.25

The exhaust temperatureT_4=1997.5R

Explanation:

Compression ratio CR(r)=20

\dfrac{V_1}{V_2}=20

P_2=P_3=920 psia

T_1=520 R ,T_{max}=T_3,T_3=3200 R

We know that for air γ=1.4

If we assume that in diesel engine all process is adiabatic then

\dfrac{T_2}{T_1}=r^{\gamma -1}

\dfrac{T_2}{520}=20^{1.4 -1}

T_2=1723.28R

\dfrac{V_3}{V_2}=\dfrac{T_3}{T_2}

\dfrac{V_3}{V_2}=\dfrac{3200}{520}

So cut-off ratio\dfrac{V_3}{V_2}=6.15

\dfrac{V_1}{V_2}=\dfrac{V_4}{V_3}\times\dfrac{V_3}{V_2}

Now putting the values in above equation

\dfrac20=\dfrac{V_4}{V_3}\times 6.15

\dfrac{V_4}{V_3}=3.25

So expansion ratio\dfrac{V_4}{V_3}=3.25.

\dfrac{T_4}{T_3}=(expansion\ ratio)^{\gamma -1}

\dfrac{T_3}{T_4}=(3.25)^{1.4 -1}

T_4=1997.5R

So the exhaust temperatureT_4=1997.5R

3 0
4 years ago
What is integrated circuit package ​
enyata [817]

Answer:

Explanation:

, integrated circuit packaging is the final stage of semiconductor device fabrication, in which the block of semiconductor material is encapsulated in a supporting case that prevents physical damage and corrosion.

4 0
3 years ago
Read 2 more answers
An airplane travels 1000 miles at velocity of 500 miles in every hour. solve for the time it took the plane to arrive.
alukav5142 [94]

Answer:

Time taken by airplane to cover given distance = 2 hour

Explanation:

Given:

Distance cover by airplane = 1,000 miles

Velocity of airplane = 500 miles per hour

Find:

Time taken by airplane to cover given distance

Computation:

Time taken = Distance / Velocity(Speed)

Time taken by airplane to cover given distance = Distance cover by airplane / Velocity of airplane

Time taken by airplane to cover given distance = 1,000 / 500

Time taken by airplane to cover given distance = 2 hour

7 0
3 years ago
A missile flying at high speed has a stagnation pressure and temperature of 5 atm and 598.59 °R respectively. What is the densit
alexdok [17]

Answer:

5.31\frac{kg}{m^3}

Explanation:

Approximately, we can use the ideal gas law, below we see how we can deduce the density from general gas equation. To do this, remember that the number of moles n is equal to \frac{m}{M}, where m is the mass and M the molar mass of the gas, and the density is \frac{m}{V}.

For air M=28.66*10^{-3}\frac{kg}{mol} and \frac{5}{9}R=K

So, 598.59 R*\frac{5}{9}=332.55K

pV=nRT\\pV=\frac{m}{M}RT\\\frac{m}{V}=\frac{pM}{RT}\\\rho=\frac{pM}{RT}\\\rho=\frac{(5atm)28.66*10^{-3}\frac{kg}{mol}}{(8.20*10^{-5}\frac{m^3*atm}{K*mol})332.55K}=5.31\frac{kg}{m^3}

7 0
4 years ago
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