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Inga [223]
3 years ago
8

(Almost) FREE POINTS!!!!! Hey there, Im writting a research paper, and I want to know if you think NASA is a waste of money or n

ot? Why do you think it is or isnt? Could the money be used better somewhere else? Im just looking for opinions with your facts to support,and no, Im not going to copy paste into my paper. Im looking for any points or reasons I may have missed. Thanks!
Engineering
2 answers:
alisha [4.7K]3 years ago
8 0

it depends on what ur using the money to do but in my opinion yes because it would make you have a better investment in space training or even air force training and would help your reputation.

hope this helps

tatuchka [14]3 years ago
3 0

Answer:

No I don't think NASA is a waste of time. I don't think its a waste of time because NASA is exploring what is beyond Earth and its important to know about Space.

Explanation:

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3 0
2 years ago
For some metal alloy, a true stress of 345 MPa (50040 psi) produces a plastic true strain of 0.02. How much will a specimen of t
Strike441 [17]

Answer:

the elongation of the metal alloy is 21.998 mm

Explanation:

Given the data in the question;

K = σT/ (εT)ⁿ

given that metal alloy true stress σT = 345 Mpa, plastic true strain εT = 0.02,

strain-hardening exponent n = 0.22

we substitute

K = 345 / 0.02^{0.22

K = 815.8165 Mpa

next, we determine the true strain

(εT) = (σT/ K)^1/n

given that σT = 412 MPa

we substitute

(εT) = (412 / 815.8165 )^(1/0.22)

(εT) = 0.04481 mm

Now, we calculate the instantaneous length

l_i = l_0e^{ET

given that l_0 = 480 mm

we substitute

l_i =480mm × e^{0.04481

l_i =  501.998 mm

Now we find the elongation;

Elongation = l_i - l_0

we substitute

Elongation = 501.998 mm - 480 mm

Elongation = 21.998 mm

Therefore, the elongation of the metal alloy is 21.998 mm

6 0
2 years ago
It is the same as force. b. Stress that is created by plate collision is the same everywhere and reflects the total force produc
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7 0
3 years ago
What are the relevance of report writing
nasty-shy [4]

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6 0
2 years ago
Regeneration can only increase the efficiency of a Brayton cycle when working fluid leaving the turbine is hotter than the worki
storchak [24]

Answer:

True, <em>Regeneration is the only process where increases the efficiency of a Brayton cycle when working fluid leaving the turbine is hotter than working fluid leaving the compressor</em>.

Option: A

<u>Explanation: </u>

To increase the efficiency of brayton cycle there are three ways which includes inter-cooling, reheating and regeneration. <em>Regeneration</em> technique <em>is used when a turbine exhaust fluids have higher temperature than the working fluid leaving the compressor of the turbine. </em>

<em>Thermal efficiency</em> of a turbine is increased as <em>the exhaust fluid having higher temperatures are used in heat exchanger where the fluids from the compressor enters and increases the temperature of the fluids leaving the compressor. </em>

6 0
3 years ago
Read 2 more answers
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