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A proton moves at 5.20  105 m/s in the horizontal direction. It enters a uniform vertical electric...

A proton moves at 5.20  105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 9.40  103 N/C. Ignore any gravitational effects.

(a) Find the time interval required for the proton to travel 4.50 cm horizontally.
________ ns

(b) Find its vertical displacement during the time interval in which it travels 4.50 cm horizontally. (Indicate direction with the sign of your answer.)
__________mm

(c) Find the horizontal and vertical components of its velocity after it has traveled 4.50 cm horizontally.


= ( ________ i +_______ j ) km/s

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