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Mashutka [201]
3 years ago
13

PLEASE HELP NO LINKS NEED HELP FAST

Physics
1 answer:
MrRa [10]3 years ago
7 0

Answer:

The galaxies outside of our own are moving away from us, and the ones that are farthest away are moving the fastest. This means that no matter what galaxy you happen to be in, all the other galaxies are moving away from you

Explanation:

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A pitot tube system measures the static pressure in 50 cm diameter duct containing air (\rho\:=rho =1.1 kg/m3) as 97 kPa and the
erastova [34]

Answer:

The velocity in duct is 73.854 m/s.

Explanation:

Given that Pitot tube measuring velocity v in 50 cm diameter duct contain air of density 1.1 \frac{kg}{m^{3} }.

Also, P1 = Pressure in duct is 97kpa and P2 = Pressure at impact or stagnation point is 100kpa.

Using Bernoulli equation,

P+\frac{1}{2}\rho v^{2} +\rho gh=0

When air is flowing through duct,

97,000+\frac{1}{2}\rho v^{2} +\rho gh1=0

When air is at stagnation point.

1,00,000+0+\rho gh1=0

Comparing both the equation,

97,000+\frac{1}{2}\rho v^{2} +\rho gh1=1,00,000+\rho gh1

\frac{1}{2}\rho v^{2}=3000

0.55v^{2}=3000

v^{2}=5454.54

v=73.854 m/s.

Therefore, The velocity in duct is 73.854 m/s.

4 0
3 years ago
Nodes give a vertebrate’s back flexibility.<br> A. True<br> B. False
Lapatulllka [165]
No B. its false<span> they do not. Lyphnodes are a permant part of the body and you have them in your Neck</span>
5 0
3 years ago
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What are 3 facts you learned about the periodic table:
d1i1m1o1n [39]

Answer: the rarest element is Francium. J is not on the periodic table. also Dmitri Mendeleev proposed the periodic table.

Explanation: Kinda looked the last one up.

7 0
3 years ago
Which equipment would help you separate a liquid mixture by distillation?
anzhelika [568]
Distillation is a process in many laboratories for the purpose of separating and/or purifying components of a liquid mixture. The distillation apparatus used consists of three major parts: <span>distillation flask - to heat the mixture and volatilize the components, a condenser to cool the vapors back to liquid state, and a collection vessel.  The apparatus is typically made of glass and therefore subject to breakage.</span> <span>All components of the distillation apparatus should be protected to a stable stand or rack to avoid it from falling over.</span>
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3 years ago
Define Work.<br>Thank You!​
Anna35 [415]

Answer:

<h2>work:</h2>

Activity in which one exerts strength or faculties to do or perform something. A job is an activity that a person engages in regularly to earn a livelihood.

<u>you are welcome!</u>

6 0
3 years ago
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