One similarity between photons and Z particles is that A) both ...

[dakota nelson]

One similarity between photons and Z particles is that
 
  A) both have mass.
  B) both have charge.
  C) both travel at lightspeed.
  D) both are exchange particles for the strong force.
  E) both are exchange particles for the electroweak force.

Question 2

An ideal spring with a spring constant of 15 N/m is initially compressed by 3.0 cm from its uncompressed position. How much work is required to compress the spring an additional 4.0 cm?
 
  A) 0.0068 J
  B) 0.012 J
  C) 0.024 J
  D) 0.030 J

[sultansheikh]

Answer to Question 1

E

Answer to Question 2

D