1. A proton moving at 3.0 x 104 m/s is projected at an angle of 30° above a horizontal plane. If an electric field of 4.0 x 10² N/C is directed downwards, then show that it takes the proton 7.8 x 10-7s to return to the horizontal plane.

1. A proton moving at 3.0 x 104 m/s is projected at an angle of 30° above a horizontal plane. If an electric field of 4.0 x 10² N/C is directed downwards, then show that it takes the proton 7.8 x 10-7s to return to the horizontal plane.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter19: Electric Forces And Electric Fields

Section: Chapter Questions

Problem 16P

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question 1b

1. A proton moving at 3.0 x 104 m/s is projected at an angle of 30° above a horizontal
plane. If an electric field of 4.0 x 10² N/C is directed downwards, then show that it
takes the proton 7.8 x 10-7 s to return to the horizontal plane.

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