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Author Question: If the net flux through a closed surface is positive, then the net charge enclosed must be positive. ... (Read 70 times)

lak

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on: Jul 29, 2018
If the net flux through a closed surface is positive, then the net charge enclosed must be positive.
 
  Indicate whether the statement is true or false

Question 2

A spaceship moves away from the Earth with a speed of 0.80c. The spaceship then fires a missile with a speed of 0.50c relative to the spaceship.
 
  (a) What is the velocity of the missile measured by observers on the Earth if the missile is fired away from the Earth? (b) What is the velocity of the missile measured by observers on the Earth if the missile is fired toward the Earth?


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aham8f

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

TRUE

Answer to Question 2

(a) 0.93c
(b) 0.50c


lak

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Reply #2 on: Jul 29, 2018
Thank you!


aham8f

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Reply #3 on: Jul 29, 2018
Always glad to help...


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