A 500-kg cannon fires a 4.0-kg projectile with a velocity of 500 ...

[abarnes]

A 500-kg cannon fires a 4.0-kg projectile with a velocity of 500 m/s relative to the ground. What is the recoil speed of the cannon?
 
  A) 1.0 m/s
  B) 2.0 m/s
  C) 4.0 m/s
  D) 6.0 m/s
  E) 8.0 m/s

Question 2

When an electron moves in a direction opposite to the electric field, its potential increases but the potential energy decreases.
 
  Indicate whether the statement is true or false

[chloejackso]

Answer to Question 1

C

Answer to Question 2

TRUE

[abarnes]

Thanks

[chloejackso]

Welcome