In addition to the Mg nucleus at x = 3 cm, another 3e charge is situated on the y-axis,3cm away from the origin in the +y direction.What is the magnitude of the Electric Field halfway between the Magnesium nucleus and the 3e charge on the y axis in N/C ?

the E field from the +2e charge, and the -3e charge are in the same direction (colinear).

halfway between is the point (1.5,1.5)

distance to either charge will be

distance=(1.5^2+1.5^2)=1.5 sqrt 2 check that.

E=kq/r^2+kq/r^2= k/2.25*2 * (2e+3e)

put in k, and e as a positive number, and you have it.

2e represents the Mg nuceus.

Mangnesium nucleus is not 12e? is it 2e?

Distance between charges is d=sqrt{3²+3²} =4.24 cm

x=d/2 =4.24/2 =2.12 cm =0.0212 m
E=kq₁/x²-kq₂/x² =
=k12e/x²+k3e/x²=k9e/x²=
=9•10⁹•15•1.6•10⁻¹⁹/0.0212²=
=4.8•10⁻⁵ N/C try this !!!

any hint how i can solve this

What is the magnitude of the net electrostatic force a Boron nucleus would experience at the point halfway between the Magnesium nucleus and the 3e charge on the y axis in N? ???

I did this but I got wrong and now I am out of attempt. I already got 4 question wrong. I have two question remained 6 and 7 (spring one and other angle one). Can you help to solve these two?

hai asha for 7) tan(theta)=(E*q)/(m*g) and i not yet done for 6 question if u got correct ans help me ???

also for 5 question if u got it correct help me ????

7)tan(theta)=(E*q)/(m*g)
6)??
5)??

Hi, rickross I did 5, but I got wrong . I just multiply boron nucleus by electron, but it is wrong and now I am out of attempt. Thank you very much for your help. I am not doing 6 still. I don't know even how to start..I know due date is coming soon. I am still not getting 6o% too, but I have attempt remaing only in 6, all other are out of attempt and mostly got wrong...:(

6 question answer is:

h-(2*ke*lambda*q)/(l*ks)

4 question, I got wrong.

I calucalte three points, 3e in origin, 3e in y -axis , 12e at 3cm in X-axis. is it wrong?
We just need 3e in Y-axis and Mg nucleur?? sorry for my comprehension of english, I'm not native speak.

4th question answer need.

What is the magnitude of the Electric Field halfway between the Magnesium nucleus and the 3e charge on the y axis in N/C?