At what speed relative to the lab will a 0.272-kg object have the ...

[littleanan]

At what speed relative to the lab will a 0.272-kg object have the same momentum as a 1.30-kg object that is moving at 0.515c relative to the lab?
 
  A) 0.944c B) 0.592c C) 0.981c D) 0.922c

Question 2

Resonance in a series LRC circuit occurs when
 
  A)
 
  XL is greater than XC.
  B)
 
  XC is greater than XL.
  C)
 
  (XL - XC)2 is greater than R2.
  D)
 
  (XL - XC)2 is equal to R2.
  E)
 
  XC equals XL.

[billybob123]

Answer to Question 1

A

Answer to Question 2

E

[littleanan]

Both answers were spot on, thank you once again

[billybob123]

Great! Please up vote