The relativistic kinetic energy formula is valid A) only for ...

[809779]

The relativistic kinetic energy formula is valid
 
  A) only for speeds near the speed of light.
  B) at all speeds.
  C) only for subatomic particles, such as electrons and protons.

Question 2

A +5.0-nC charge is at the point (0.00 m, 0.00 m) and a -2.0-nC charge is at (3.0 m, 0.00 m). What work is required to bring a 1.0-nC charge from very far away to point (0.00 m, 4.0 m)? (k = 1/40 = 9.0  109 N  m2/C2 )
 
  A) 15 nJ
  B) 3.6 nJ
  C) 11 nJ
  D) 7.7 nJ

[tashiedavis420]

Answer to Question 1

B

Answer to Question 2

D

[809779]

Thanks for the timely response, appreciate it

[steff9894]

Excellent