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Author Question: An electron is released form rest in a region of space where a uniform electric field is present. ... (Read 420 times)

crobinson2013

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on: Aug 6, 2020

Question 1

An electron (m = 9.1 × 10−31 kg, q = −1.6 × 10−19 C) starts from rest at point A and has a speed of 5.0 × 106 m/s at point B. Only electric forces act on it during this motion. Determine the electric potential difference VA−VB.

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−71 V

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+71 V

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−26 V

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+26 V

◦
−140 V


Question 2

An electron is released form rest in a region of space where a uniform electric field is present. Joanna claims that its kinetic and potential energies both increase as it moves from its initial position to its final position. Sonya claims that they both decrease. Which one, if either, is correct?

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Joanna, because the electron moves opposite to the direction of the field.

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Sonya, because the electron moves opposite to the direction of the field.

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Joanna, because the electron moves in the direction of the field.

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Sonya, because the electron moves in the direction of the field.

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Neither, because the kinetic energy increases while the electron moves to a point at a higher potential.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by crobinson2013 on Aug 6, 2020

coreycathey

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Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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crobinson2013

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Reply 2 on: Aug 6, 2020
Great answer, keep it coming :)

amynguyen1221

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Reply 3 on: Yesterday
:D TYSM

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