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3 years ago

Evaluate (√31-4√21)

Engineering

1 answer:

nika2105 [10]3 years ago

4 0

Answer:

-12.76253842

Explanation:

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Create a series of eight successive displacements that would program a robot to move in an octagonal path that is as close as yo

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Answer:

bts biot bts biot jungkukkk

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Explanation:

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3 years ago

Design a 8th order wideband band-pass Butterworth filter with a lower cutoff frequency of 45 Hz, an upper cutoff frequency of 17

Lunna [17]

Explanation:

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2 years ago

2.5 kg of air at 150 kPa and 12°C is contained in a gas-tight, frictionless piston-cylinder device. The air is now compressed to

Korolek [52]

Answer:

Work input =283.47 KJ

Explanation:

Given that

$P_1=150\ KPa$

$P_2=600\ KPa$

T=12°C=285 K

m= 2.5 kg

Given that this is the constant temperature process.

e know that work for isothermal process

$W=P_1V_1\ln \dfrac{P_1}{P_2}$

$W=mRT\ln \dfrac{P_1}{P_2}$

So now putting the values

$W=mRT\ln \dfrac{P_1}{P_2}$

$W=2.5\times 0.287\times 285\ln \dfrac{150}{600}$

W=-283.47 KJ

Negative sign indicates that work is done on the system.

So work input =283.47 KJ

8 0

3 years ago

What is the standard deviation of the following data set:

EastWind [94]

Answer:

See Explanation

Explanation:

The question is incomplete as the data set are missing. However, I'll use the following data to answer your question:

5,12,3,18,6,8,2,10

Start by calculating the mean:

$Mean = \frac{\sum x}{n}$

$Mean= \frac{5+12+3+18+6+8+2+10}{8}$

$Mean= \frac{64}{8}$

$Mean = 8$

Standard deviation is calculated using:

$SD = \sqrt{\frac{(x_i - Mean)^2}{n}}$

This gives:

$SD = \sqrt{\frac{(5 - 8)^2+(12 - 8)^2+(3 - 8)^2+(18 - 8)^2+(6 - 8)^2+(8 - 8)^2+(2 - 8)^2+(10 - 8)^2}{8}}$

$SD = \sqrt{\frac{(-3)^2+(4)^2+(- 5)^2+(10)^2+(-2)^2+(0)^2+( - 6)^2+(2)^2}{8}}$

$SD = \sqrt{\frac{9+16+25+100+4+0+36+4}{8}}$

$SD = \sqrt{\frac{194}{8}}$

$SD = \sqrt{24.25}$

$SD = 4.92$

Apply the above steps in the original question, then you will get your correct answer.

3 0

3 years ago

Heavy equipment operators do not work in bad weather. True False

Leno4ka [110]

It depends on the type of weather and on the type of construction but I would say False
Let me know if it’s correct
Have a great day :)

5 0

3 years ago

Evaluate (√31-4√21)​

Evaluate (√31-4√21)