The electric field is zero everywhere except in the region 0≤x≤8.00 cm, where there is a uniform electric field of 100 n/c in the +y direction. a proton is moving in the +x direction with a speed of v = 1.00×106 m/s. when the proton passes through the region 0≤x≤8.00 cm, the electric field exerts a force on it. 1) when the x coordinate of the proton’s position is 8.00 cm, what is the x component of its velocity? (express your answer to three significant figures.)
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Ответ:
negative velocity, I think