An electron in a cathode-ray tube is traveling horizontally, Ask an Expert

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An electron in a cathode-ray tube is traveling horizontally at 2.60×109 cm/s when deflection plates give it an upward acceleration of 5.30 × 10¹⁷ cm/s^2.

a) How long does it take for the electron to cover a horizontal distance of 6.90 cm?

b) What is its vertical displacement during this time?

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