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3 years ago

8

Water flows at a uniform velocity of 3 m/s into a nozzle that reduces the diameter from 10 cm to 2 cm. Calculate the water’s vel

ocity leaving the nozzle and the flow rate.

1 answer:

katrin2010 [14]3 years ago

4 0

Answer:

See the pictures attached

Explanation:

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Oksana_A [137]

Answer:

The Euler buckling load of a 160-cm-long column will be 1.33 times the Euler buckling load of an equivalent 120-cm-long column.

Explanation:

160 - 120 = 40

120 = 100

40 = X

40 x 100 / 120 = X

4000 / 120 = X

33.333 = X

120 = 100

160 = X

160 x 100 /120 = X

16000 / 120 = X

133.333 = X

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3 years ago

Sensors are used to monitor the pressure and the temperature of a chemical solution stored in a vat. The circuitry for each sens

JulsSmile [24]

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3 years ago

List, in ascending order, the cutoff frequencies for the first ten modes of a rectangular waveguide, normalized to the cutoff fr

Alisiya [41]

Answer:

Fcte10 < Fcte01 = Fcte0 < Fctm11 < Fcte21 = Fctm21 < Fcte12 = Fctm12 < Fcte22

Explanation:

Assuming a = 2b

Attached below is the required steps to the solution

The cutoff frequencies for the first ten modes of a rectangular waveguide listed in ascending order is :

Fcte10 < Fcte01 = Fcte0 < Fctm11 < Fcte21 = Fctm21 < Fcte12 = Fctm12 < Fcte22

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3 years ago

The equation sigma = My/l is used in the mechanics of materials to determine normal stresses in beams. When this equation is exp

Alenkinab [10]

Answer:

Part a : The SI unit of σ is Pascal.

Part b : The pressure is 414.28 psi.

Explanation:

Part a

The equation is given as

$\sigma =\frac{My}{l}$

As per the dimensional analysis

$M=[N-m]\\y=[m]\\l=[m^4]$

So the equation becomes

$\sigma =\frac{[N-m][m]}{[m^4]}\\\sigma =\frac{[N][m^2]}{[m^4]}\\\sigma =\frac{[N]}{[m^{4-2}]}\\\sigma =\frac{[N]}{[m^{2}]}\\$

As the dimensions are of pressure so the SI unit of σ is Pascal.

Part b

$\sigma =\frac{My}{l}\\\sigma =\frac{2000 \times 0.1}{7 \times 10^{-5}}\\\sigma =2857142.857 \, Pa$

Pressure in US customary base units is given in psi so

$1 Pa =1.45 \times 10^{-4}\\$

So

$\sigma =2857142.857 \times 1.45 \times 10^{-4} psi\\\sigma =414.28 psi$

So the pressure is 414.28 psi.

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3 years ago

On roads with lane signals, what does a yellow x mean?

Igoryamba

Answer: A.)

Explanation:

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4 years ago