An electron (q e, m e 9 1 10 31 kg) is projected out along the x axis in vacuum with an initial speed of 3 0 10 6 m s It goes 45 cm and stops due to a uniform electric field in the region Find the magnitude and direction of the field

Question: An electron (q = e, m e = 9.1 10 31 kg) is projected out along the +x-axis in vacuum with an initial speed

An electron (q = −e, m_e = 9.1 × 10⁻³¹ kg) is projected out along the +x-axis in vacuum with an initial speed of 3.0 × 10⁶ m/s. It goes 45 cm and stops due to a uniform electric field in the region. Find the magnitude and direction of the field.

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