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A proton (charge +1.60×10−19C) and an electron (charge -1.60×10−19C) are both moving in the xy-plane with...

A proton (charge +1.60×10−19C) and an electron (charge -1.60×10−19C) are both moving in the xy-plane with the same speed, 5.20×105m/s. The proton is moving in the +y-direction along the line x = 0, and the electron is moving in the -y-direction along the line x = +3.00 mm. At the instant when the proton and electron are at their closest approach, what is the magnitude of the magnetic force that the proton exerts on the electron?

At the instant when the proton and electron are at their closest approach, what is the direction of the magnetic force that the proton exerts on the electron?

2）At the instant when the proton and electron are at their closest approach, what is the direction of the magnetic force that the proton exerts on the electron?

in the +yy-direction
in the +xx-direction
in the –xx-direction
in the –yy-direction

3.

At the instant when the proton and electron are at their closest approach, what is the magnitude of the magnetic force that the electron exerts on the proton?

Express your answer with the appropriate units.

4.

At the instant when the proton and electron are at their closest approach, what is the direction of the magnetic force that the electron exerts on the proton?

At the instant when the proton and electron are at their closest approach, what is the direction of the magnetic force that the electron exerts on the proton?

in the +xx-direction
in the –xx-direction
in the –yy-direction
in the +yy-direction
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