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antoniya [11.8K]

2 years ago

7

If extension done in a stork position, during backward bending in a standing position of a special test for lumbar spine, produc

es pain in the lumbar or sacral regions of the spine, it may indicate _____.

1 answer:

Klio2033 [76]2 years ago

5 0

The answer is 7 because I just took the test!

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A room is kept at −5°C by a vapor-compression refrigeration cycle with R-134a as the refrigerant. Heat is rejected to cooling wa

Fed [463]

Answer:

note:

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4 0

3 years ago

Read 2 more answers

Water at a pressure of 3 bars enters a short horizontal convergent channel at 3.5 m/s. The upstream and downstream diameters of

earnstyle [38]

Answer:

The pressure reduces to 2.588 bars.

Explanation:

According to Bernoulli's theorem for ideal flow we have

$\frac{P}{\gamma _{w}}+\frac{V^{2}}{2g}+z=constant$

Since the losses are neglected thus applying this theorm between upper and lower porion we have

$\frac{P_{u}}{\gamma _{w}}+\frac{V-{u}^{2}}{2g}+z_{u}=\frac{P_{L}}{\gamma _{w}}+\frac{V{L}^{2}}{2g}+z_{L}$

Now by continuity equation we have

$A_{u}v_{u}=A_{L}v_{L}\\\\\therefore v_{L}=\frac{A_{u}}{A_{L}}\times v_{u}\\\\v_{L}=\frac{d^{2}_{u}}{d^{2}_{L}}\times v_{u}\\\\\therefore v_{L}=\frac{2500}{900}\times 3.5\\\\\therefore v_{L}=9.72m/s$

Applying the values in the Bernoulli's equation we get

$\frac{P_{L}}{\gamma _{w}}=\frac{300000}{\gamma _{w}}+\frac{3.5^{2}}{2g}-\frac{9.72^{2}}{2g}(\because z_{L}=z_{u})\\\\\frac{P_{L}}{\gamma _{w}}=26.38m\\\\\therefore P_{L}=258885.8Pa\\\\\therefore P_{L}=2.588bars$

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3 years ago

Name some technical skills that are suitable for school leavers .

Natalka [10]

Answer:

Welding, carpentry, masonry, construction worker, barber

Explanation:

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3 years ago

A certain robot can perform only 4 types of movement. It can move either up or down or left or right. These movements are repres

Olegator [25]

Answer:

def theRoundTrip(movement):

x=0

y=0

for i in movement:

if i not in ["U","L","D","R"]:

print("bad input")

return

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y+=1

if i=="L":

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if i=="D":

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if i=="R":

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return x==0 and y==0

8 0

4 years ago

Mr. Blue lives in a blue house, Mrs. Pink lives in a pink house and Mr. Red lives in a red house. Who lives in the White House?

Cerrena [4.2K]

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the president and mr.white my history teacher lol

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3 years ago