subtract polynomials (c) a³+3a²-5a+4from 3a³-a²+2a-4​

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The drawback of Rutherford model is:

It can't explain the stability of an atom. As per the model, the orbital revolution of electrons around the nucleus is not stable as the revolving electrons in orbits will undergo acceleration and emit energy. This will result in loss of energy of electrons and they will ultimately fall into the nucleus.

Drawbacks of Rutherford’s Atomic Model

Rutherford’s Atomic Model had the Following Limitations:

• This atomic model failed to explain the stability of atoms.

• According to the model, electrons revolve around the positively charged nucleus. It's not possible for the long run as we know atoms are stable while any particle in a circular orbit would undergo acceleration. During acceleration charged particles would radiate energy. Revolving electrons will lose energy and finally fall into the nucleus. 

• This model of the atom also failed to explain the existence of definite lines in the hydrogen spectrum.

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Your maths problem

(\frac{3}{4}x+\frac{-4}{3}y),(\frac{2}{3}x+\frac{3}{2}y)

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Answer:

Sup Karsh!

Reluctance is the property of a magnetic circuit of opposing the passage of magnetic flux lines, equal to the ratio of the magnetomotive force to the magnetic flux.

Explanation:

Hope it helps✌️✌️

BTW Nice dp

Answer:

feeling or showing aversion, hesitation, or unwillingness reluctant to get involved also : having or assuming a specified role unwillingly a reluctant hero.

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