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REY [17]
3 years ago
5

PLEASE HELP ASAP!! Will give brainliest if you explain!

Mathematics
1 answer:
Rashid [163]3 years ago
6 0
Rule for reflection over the y - axis,

( x , y ) ==> ( - x , y )

Rule for reflection over the x - axis,

( x , y ) ==> ( x , - y )

~~
Reflection over the y - axis,

A = ( 2 , 3 ) ==> A' ( - 2 , 3 )

B = ( 4 , 1 ) ==> B' ( - 4 , 1 )

C = ( 6 , 2 ) ==> C' ( - 6 , 2 )

D = ( 3 , 5 ) ==> D' ( - 3 , 5 )

Reflection over the x - axis,

A' ( - 2 , 3 ) ==> A'' ( - 2 , - 3 )

B' ( - 4 , 1 ) ==> B'' ( - 4 , - 1 )

C' ( - 6 , 2 ) ==> C'' ( - 6 , - 2 )

D' ( - 3 , 5 ) ==> D'' ( - 3 , - 5 )

~~

Another way to solve,

Reflection over the y - axis : Count the units away from the y - axis and then move that same amount pass the y - axis to reflect over the y - axis.

Reflection over the x - axis : Do the same for the x - axis yet count the units away from the x - axis and go that amount pass the x - axis.

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey
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A closed cylindrical vessel contains a fluid at a 5MPa pressure. The cylinder, which has an outside diameter of 2500mm and a wal
Julli [10]

Answer:

1) Increase in the diameter equals 3.5 mm

2) Increase in the length equals 0.0003724L_{i} where L_{i} is the initial length of the vessel.

Step-by-step explanation:

The diametric strain in the vessel is given by

\epsilon_{D} =\epsilon_{diam}-\nu \epsilon _{axial}

We have

\epsilon _{diam}=\frac{\sigma _{hoop}}{E}\\\\\sigma _{hoop}=\frac{\Delta P\times D}{2t}\\\\\therefore \epsilon _{diam}=\frac{\Delta P\times D}{2t\times E}

Applying values we get

\therefore \epsilon _{diam}=\frac{5\times 10^{6}\times 2.5}{2\times 20\times 10^{-3}\times 193\times 10^{9}}\\\\\therefore \epsilon _{diam}=\frac{5}{3088}

Similarly axial strain is given by

\epsilon _{diam}=\frac{\sigma _{axial}}{E}

\sigma _{axial}=\frac{\Delta P\times D}{4t}\\\\\therefore \epsilon _{axial}=\frac{\Delta P\times D}{4t\times E}

Applying values we get

\therefore \epsilon _{axial}=\frac{5\times 10^{6}\times 2.5}{4\times 20\times 10^{-3}\times 193\times 10^{9}}\\\\\therefore \epsilon _{diam}=\frac{2.5}{3088}

Hence The effect of axial strain along the diameter is given by

-\nu \epsilon _{axial}

Applying values we get

-\nu \epsilon _{axial}=-0.27\times \frac{2.5}{3088}=-0.0002185

hence

\epsilon _{D} =\frac{5}{3088}-0.0002185\\\\\epsilon =0.00140

Now by definition of strain we have

\epsilon _{D} =\frac{D_{f}-D_{i}}{D_{i}}\\\\\therefore D_{f}=D_{i}+\epsilon D_{i}\\\\D_{f}=2.5+0.0014\times 2.5\\\\\therefore D_{f}=2503.5mm

Increase in the diameter is thus 3.5 mm

Using the same procedure for axial strain we have

\epsilon_{axial} =\epsilon_{axial}-\nu \epsilon _{diam}

Applying values we get

\epsilon_{axial} =\frac{2.5}{3088}-0.27\times \frac{5}{3088}

\epsilon_{axial} =0.0003724

Now by definition of strain we have

\epsilon _{axial} =\frac{L_{f}-L_{i}}{L_{i}}\\\\\therefore \Delta L=0.0003724L_{i}

where L_{i} is the initial length of the cylinder.

6 0
4 years ago
Thank you so much thank you thank much
Drupady [299]

Answer:

6s - 300 > 210 is the answer.

3 0
3 years ago
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