1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Whitepunk [10]
3 years ago
14

Draw perpendicular lines based on the info in the image.

Engineering
1 answer:
Over [174]3 years ago
5 0
Wait let me try it…..
You might be interested in
Argue the importance to society of incorporating green building into an engineer’s designs, with at least two examples.
klio [65]
It is important because now a days we all need help from engineers
3 0
3 years ago
Air flows steadily through a variable sized duct in a heat transfer experiment with a speed of u = 20 – 2x, where x is the dista
zysi [14]

Answer:

a) a=-28m/s^{2}

b) \frac{dT}{dx}=-5 ^{o}C/m

Explanation:

a)

In order to solve this problem, we need to start by remembering how the acceleration is related to the velocity of a particle. We have the following relation:

a=\frac{dv}{dt}

in other words, the acceleration is defined to be the derivative of the velocity function with respect to time. So let's take our speed function:

u=20-2x

if we take its derivative we get:

du=-2dx

this is the same as writting:

\frac{du}{dt}=-2\frac{dx}{dt}

we also know that velocity is defined to be:

u=\frac{dx}{dt}

so we get that:

a=-2u

when substituting we get that:

a=-2(20-2x)

when expanding we get:

a=-40+4x

and now we can use this equation to find our acceleration at x=3, so:

a=-40+4(3)

a=-40+12

a=-28 m/s^{2}

b)

the same applies to this problem with the difference that this will be the rate of change of the temperature per m. So we proceed and take the derivative of the temperature function:

T=200-5x

\frac{dT}{dx}=-5

so the rate of change is -5^{o}C/m

7 0
3 years ago
If you always follow the same five steps to get ready for school, then you are following an algorithm.
raketka [301]

Answer:

hmm true

Explanation:

becuase i think alogorthm is wht u do regurkry if i helped mark me brailist

4 0
3 years ago
Read 2 more answers
Ammonia enters the expansion valve of a refrigeration system a temperature of 24oC and pressure of10 bar and exits at 1 bar. If
miskamm [114]

Answer:

X=0.194

T=-33.6C

Explanation:

Hello!

To solve this problem use the following steps!

1. We will call the expansion valve inlet 1 and exit 2

2.Through laboratory tests, thermodynamic tables were developed, these allow to know all the thermodynamic properties of a substance (entropy, enthalpy, pressure, specific volume, internal energy etc ..)

through prior knowledge of two other properties such as pressure and temperature.

3. Find the enthalpy of state 1 using pressure and temperature using thermodynamic tables

h1=Enthalpy(Ammonia;T=24C;P=1000kPa)=312.9KJ/kg

4. An expansion valve is a device which does not have heat or work exchange which means that the enthalpy of state one is equal to that of state 2, so using thermodynamic tables uses the pressure of state 2 and enthalpy of state 1 to find quality and temperature

x2=Quality(Ammonia;P=100kPa;h=h1=312.9KJ/kg) =0.194

T2=Temperature(Ammonia;P=100kPa;h=h1=312.9KJ/kg)=-33.6C

6 0
4 years ago
Write a complete program that copies each character that is input from the keyboard and prints it to the screen, with the follow
fiasKO [112]

Answer:

program:

#include<stdio.h>

#include<string.h>

int main()

{

char character;

int count =0;

int i;

while (1)

{

while((character=getchar())!='^z')

{

if (character=='\n')

{

printf("\/n");

}

else

printf("%c",character);

}

break;

}

}

Output:

8 0
4 years ago
Other questions:
  • A signalized intersection approach has an upgrade of 4%. The total width of the cross street at this intersection is 60 feet. Th
    15·1 answer
  • This is a new technology meant to reduce vehicle roll-overs A. Lane-departure warning B. Anti-lock brakes C. Inspection reports
    7·1 answer
  • Select all of the true statements.
    14·1 answer
  • Which of the following statement(s) are true?
    14·1 answer
  • Beginning in the 1960s, various advocates of the design-build model began to agitate against the design-bid-build approach and f
    9·1 answer
  • 1. How is high-speed internet typically transmitted around the world? over telephone wires b. through fiber optic cables c. beam
    9·2 answers
  • It is desired to produce and aligned carbon fiber-epoxy matrix composite having a longitudinal tensile strength of 630 MPa. Calc
    6·1 answer
  • Basic leads have a probe on one end for making the connection with the electrical circuit being tested and a
    8·1 answer
  • A customer comes in with a vehicle that needs tire rotation and wheel alignment. Your bay has a two post frame engaging lift is
    8·1 answer
  • A continuous fiber-reinforced composite is to be produced by dispersing 60 vol% carbon fibers in a polycarbonate matrix. if the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!