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Gennadij [26K]
3 years ago
15

jennys history teacher always sets the tempature in her classroom very low jenny always shivers when she is in class because she

is cold now as jenny approaches the classroom she starts to shiver
Physics
2 answers:
Yakvenalex [24]3 years ago
8 0

Is there a question or is that it?

Elena-2011 [213]3 years ago
8 0

it has something to do with nerves building a habit. like if you work out for so long you create a habit of doing it and it is hard to break a habit. so if she had been going to that class for a long enough time she will create a habit that creates her shivering every time she nears that certain classroom

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Where and when does the sun stay up for 24hours
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where the units of x are length and the numbers 2.6 and 5.1 have appropriate units so that U(x) has units of energy. What is the
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Answer:

x = 1.00486 m

Explanation:

The complete question is:

" The potential energy between two atoms in a particular molecule has the form U(x) =(2.6)/x^8 −(5.1)/x^4 where the units of x are length and the num- bers 2.6 and 5.1 have appropriate units so that U(x) has units of energy. What is the equilibrium separation of the atoms (that is the distance at which the force between the atoms is zero)?  "

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- The correlation between force F and energy U is given as:

                                  F = - dU / dx

                                  F = - d[(2.6)/x^8 −(5.1)/x^4] / dx  

                                  F = 20.8 / x^9 - 20.4 / x^5

- The equilibrium separation distance between atoms is given when Force F is zero:

                                  0 = 20.8 / x^9 - 20.4 / x^5

                                  0 = 20.8 - 20.4*x^4

                                  x^4 = 20.8/20.4

                                  x = ( 20.8/20.4 )^0.25

                                  x = 1.00486 m

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