If the net flux through a closed surface is positive, then the ...

[lak]

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?

[aham8f]

Answer to Question 1

TRUE

Answer to Question 2

(a) 0.93c
(b) 0.50c

[lak]

Thank you!

[aham8f]

Always glad to help...