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  3. 1) an electron passes through a point 3.15 cm from

1) An electron passes through a point 3.15 cm from a long straight wire as it...

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Physics

1) An electron passes through a point 3.15 cm from a longstraight wire as it moves at 33.9% of the speed of lightperpendicularly toward the wire. The wire carries a current of 18.9A. Find the magnitude of the electron's acceleration at thatpoint.

acceleration:____________ m/s2

2) A beam of protons is directed in a straight line along thepositive ?‑direction through a region of space in which there arecrossed electric and magnetic fields. If the electric fieldmagnitude is ?=430 V/m in the negative ?‑direction and the protonsmove at a constant speed of ?=9.1×105 m/s, what must the directionand magnitude of the magnetic field be in order for the beam ofprotons to continue undeflected along its straight-linetrajectory?

Select the direction of the magnetic field ?

a) positive y‑direction

b) negative ?‑direction

c) negative ?‑direction

d)positive ?‑direction

e) negative ?‑direction

f) positive ?‑direction

Magnitude of the magnetic field ? :________________T

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