A particle (mass = 4.0 g, charge = 80 mC) moves in a region of ...

[HCHenry]

A particle (mass = 4.0 g, charge = 80 mC) moves in a region of space where the electric field is uniform and is given by Ex = 2.5 N/C, Ey = Ez = 0 . If the velocity of the particle at t = 0 is given by vx = 80 m/s, vy = vz = 0, what is the speed of the particle at t = 2.0 s?
 a. 40 m/s
  b. 20 m/s
  c. 60 m/s
  d. 80 m/s
  e. 180 m/s

Question 2

A uniform linear charge of 2.0 nC/m is distributed along the x axis from x = 0 to x = 3 m. What is the x component of the electric field at y = 2 m on the y axis?
 a. 5.0 N/C
  b. 4.0 N/C
  c. 5.7 N/C
  d. 6.2 N/C
  e. 9.0 N/C

[ciecieme]

Answer to Question 1

b

Answer to Question 2

b

[HCHenry]

Excellent

[rleezy04]

Gracias!