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Author Question: The Sun subtends an angle of 0.00928 radians at the surface of the earth. Its distance from Earth is ... (Read 21 times)

notis

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on: Jul 29, 2018
The Sun subtends an angle of 0.00928 radians at the surface of the earth. Its distance from Earth is 1.50 x 1011 m. What is the diameter of the Sun?
 
  What will be an ideal response?

Question 2

Two point charges q1 = 4.0 C and q2 = -8.0 C are placed along the x-axis at x1 = 0 m and x2 = 0.20 m, respectively. What is the electric potential energy of this system of charges?
 
  A) +1.4 J
  B) -1.4 J
  C) -32 J
  D) 4.0 J
  E) -4.0 J


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xMRAZ

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Reply #1 on: Jul 29, 2018
Answer to Question 1

1.39  109 m

Answer to Question 2

B


notis

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

amit

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Reply 3 on: Yesterday
Wow, this really help

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