Answer:
Where do I answer them???
I think the model being described is the Rutherford atom model. This is where he posit that atoms have a nucleus which contains positively charged protons and surrounded by electrons.
Thank you for your question. Please don't hesitate to ask in Brainly your queries.
Answer:
<em>F</em> = <em>0</em>
Explanation:
This problem can be solved by using the equation for the force produced by a magnetic field over a charge
<em>F</em> = q<u><em>v</em></u> X <em>B</em>
That is, the cross product between velocity and the magnetic field.
In this case, v is in the negative z-direction <em>v</em> = -v k^,
and the magnetic field is in the positive z-direction <em>B</em> = z k^
Hence, the cross product is
F = q<em>v </em>X <em>B</em> = 0i^ - 0j^ + 0k^ = <em>0</em>
In this case the net force is zero due to both velocity and magnetic field vectors are in the z-direction
