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Paha777 [63]
3 years ago
5

Only two electrons, with opposing spins, are allowed in each orbital is known as the

Physics
1 answer:
Sophie [7]3 years ago
3 0

Answer:

Only two electrons, with opposing spins, are allowed in each orbital is known as the Aufbau's principle.

Explanation:

Aufbau's principle states that at the ground state of atom the atomic orbits  of lowest energy are first filled by the electrons followed by the atomic orbits of higher energy.

Example:

1s orbit is first filled by the electrons in the opposite spin followed by 2s. Thus, first 1s is filled with 2 electrons in the opposite spin before filling the 2s orbit.


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A man pushes on piano with mass 170 kg; it slides at constant velocity down a ramp that is inclined at 20.0 ∘ above the horizont
nikdorinn [45]

Answer

given,                            

mass of the piano = 170 kg              

angle of the inclination = 20°                

moves with constant velocity hence acceleration = 0 m/s²    

neglecting friction                                  

so, force required to pull the piano                    

F = m g sin θ                                                      

F = 170 × 9.81 × sin 20°                                        

F = 570.39 N                                                    

so, force required by the man to push the piano is F = 570.39 N

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2 years ago
What is the farthest planet from earth?
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3 years ago
How much charge does a 9.0 v battery transfer from the negative to the positive terminal while doing 39 j of work?
sdas [7]
The work done by the battery is equal to the charge transferred during the process times the potential difference between the two terminals of the battery:
W=q \Delta V
where q is the charge and \Delta V is the potential difference.

In our problem, the work done is W=39 J while the potential difference of the battery is \Delta V = 9.0 V, so we can find the charge transferred by the battery:
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3 years ago
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