In a series LRC circuit, capacitive reactance and inductive ...

[james9437]

In a series LRC circuit, capacitive reactance and inductive reactance
 
  A)
 
  square and subtract from one another to yield impedance.
  B)
 
  combine with each other as legs of a right triangle.
  C)
 
  square and add together to yield impedance.
  D)
 
  add together increasing impedance.
  E)
 
  subtract from one another decreasing impedance.

Question 2

A spaceship is moving away from the earth with a constant speed of 0.80c. The spaceship fires a 28-kg missile with a speed of 0.50c relative to the spaceship.
 
  What is the speed of the missile measured by observers on the earth if the missile is fired
  (a) away from the earth?
  (b) toward the earth?

[polinasid]

Answer to Question 1

E

Answer to Question 2

(a) 0.93c (b) 0.50c

[james9437]

Thanks

[polinasid]

Welcome