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A proton traveling at 4.20 km/s suddenly enters a uniform magnetic field of 0.770 T ,...

A proton traveling at 4.20 km/s suddenly enters a uniform magnetic field of 0.770 T , traveling at an angle of 55.0 ∘ with the field lines

a) Find the magnitude of the force this magnetic field exerts on the proton.

Express your answer in newtons to three significant figures.

b) If you can vary the direction of the proton's velocity, find the magnitude of the maximum force you could achieve.

Express your answer in newtons to three significant figures.

c) What would the answer to Part B be if the proton were replaced by an electron traveling in the same way as the proton?

Express your answer in newtons to three significant figures.

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