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Hatshy [7]
2 years ago
12

X − 3y − 8z = −10 2x + 5y + 6z = 13 3x + 2y − 2z = 3

Engineering
1 answer:
nikitadnepr [17]2 years ago
7 0

Answer:

x - 3y - 8z = -10 2x + 5y + 6z = 13 3x + 2y - 2z = 3 =>  (-1+2z,2-2z,z)

Explanation:

x - 3y - 8z = -10 2x + 5y + 6z = 13 3x + 2y - 2z = 3

Solve using Gaussian Elimination

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WHICH OF THIS PLS FAST!!!
Effectus [21]

Answer:

A

Explanation:

4 0
3 years ago
The weatherman states that the current temperature is 95 F and the dew point is 74 F. What is the current relative humidity?
spayn [35]

Answer:

Current Relative Humidity is 29.623

Given:

Current Temperature, T_{c} = 95 F = 35^{\circ}C

Dew point temperature, T_{d} = 74 F = 23.34^{\circ}C

Solution:

Now, in order to calculate the Relative Humidity, RH, we use the given formula:

T_{d} =100( \frac{\frac{aT_{c}}{b + T}b + lnRH}{a - \frac{aT_{c}}{b + T} + lnRH})

where

a = 17.625

b = 237.7

Now, using the above formula and given values:

23.34 = (237.7\frac{\frac{17.625\times 35}{ 237.7 + 35} + lnRH}{17.625 - \frac{17.625\times 35}{237.7 + 35} + lnRH})

23.34(17.625 - 2.26 + lnRH) = (237.7\times 2.26 + lnRH)

358.62 + 23.34lnRH) = (537.20 + lnRH)

358.62 + 23.34lnRH) = (537.20 + lnRH)

On solving the above eqn, we get:

RH = 29.623

3 0
3 years ago
Which contribution of Science is the most important discovery of man? Explain why?​
Vsevolod [243]

Answer:

<h2>The Invention of the Internal Combustion Engine (ICE)</h2>

Explanation:

The internal combustion engine is an engine in which ignition and combustion take place in the engine(in one place), the invention of the ICE was an integral part of the industrial revolution, as there was increasing demand for power, and manual labor could not suffice, especially during the mid 19 century.

The ICE made it possible for tasks that demand intensive power consumption to come through to reality, it was as a result of the invention of the ICE that road transportation was made easier for mankind, as the means of transport then was the use of beast of burden, now we have cars, airplanes ship, etc, essentially the invention of ICE reduced the tedious task man would have to engage in for his daily needs

5 0
3 years ago
A cylindrical specimen of some metal alloy having an elastic modulus of 108 GPa and an original cross-sectional diameter of 4.5
IgorC [24]

Answer:

The maximum length of the specimen before the deformation was 358 mm or 0.358 m.

Explanation:

The specific deformation ε for the material is:

\epsilon = \deltaL /L (1)

Where δL and L represent the elongation and initial length respectively. From the HOOK's law we also now that for a linear deformation, the deformation and the normal stress applied relation can be written as:

\sigma = E/ \epsilon (2)

Where E represents the elasticity modulus. By combining equations (1) and (2) in the following form:

L= \delta L/ \epsilon

\epsilon =\sigma /E  

So by calculating ε then will be possible to find L. The normal stress σ is computing with the applied force F and the cross-sectional area A:

\sigma=F/A

\sigma=\frac{F} {\pi*d^2/4}

\sigma=\frac{2170 N}{\pi*4.5 mm^2/4}

\sigma= 136000000 Pa= 136 Mpa  

Then de specific defotmation:

\epsilon =136 MPa / 108 GPa = 1.26*10^{-3}

Finally the maximum specimen lenght for a elongation 0f 0.45 mm is:

L= 0.45 mm/ 1.26*10^{-3} = 358 mm = 0.358 m

4 0
3 years ago
Semiconductor pn junction diode and zener diode quiz questions
suter [353]

1.) A semiconductor is a device whose conductivity lies between the conductivity of the conductors and the insulators.

2.) A Zener diode is a semiconductor device made of silicon that allows current to flow in both directions.

<h3>What is a semiconductor?</h3>

A semiconductor is a device whose conductivity lies between the conductivity of the conductors and the insulators.

Due to the inclusion of an impurity or temperature effects, a solid substance with conductivity between that of an insulator and that of most metals. Semiconductor devices, particularly silicon devices, are key components of most electronic circuits.

Zener diode:-

A Zener diode is a semiconductor device made of silicon that allows current to flow in both directions.

To know more about semiconductors follow

brainly.com/question/13800609

#SPJ4

7 0
2 years ago
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