Aproton, initially traveling in the +x-direction with a speed of 5.05×10^5 m/s , enters a uniform electric field directed vertically upward. after traveling in this field for 3.90×10^−7 s , the proton’s velocity is directed 45° above the +x-axis. what is the strength of the electric field?
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Aproton, initially traveling in the +x-direction with a speed of 5.05×10^5 m/s , enters a uniform el...
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