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Author Question: Identical point charges (+50 C) are placed at the corners of a square with sides of 2.0-m length. ... (Read 70 times)

sdfghj

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  • Posts: 552
on: Jul 28, 2018
Identical point charges (+50 C) are placed at the corners of a square with sides of 2.0-m length. How much external energy is required to bring a fifth identical charge from infinity to the geometric center of the square?
 a. 41 J
  b. 16 J
  c. 64 J
  d. 10 J
  e. 80 J

Question 2

Through what potential difference must an electron (starting from rest) be accelerated if it is to reach a speed of 3.0  107 m/s?
 a. 5.8 kV
  b. 2.6 kV
  c. 7.1 kV
  d. 8.6 kV
  e. 5.1 kV


akudia

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  • Posts: 347
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

b


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