A particle (charge = +40 C) is located on the x axis at the point ...

[CORALGRILL2014]

A particle (charge = +40 C) is located on the x axis at the point x = 20 cm, and a second particle (charge = 50 C) is placed on the x axis at x = +30 cm. What is the magnitude of the total electrostatic force on a third particle (charge = 4.0 C) placed at the origin (x = 0)?
 a. 41 N
  b. 16 N
  c. 56 N
  d. 35 N
  e. 72 N

Question 2

Each of two small non-conducting spheres is charged positively, the combined charge being 40 C. When the two spheres are 50 cm apart, each sphere is repelled from the other by a force of magnitude 2.0 N. Determine the magnitude of the smaller of the two charges.
 a. 1.4 C
  b. 1.1 C
  c. 2.0 C
  d. 3.3 C
  e. 17 C

[Kingjoffery]

Answer to Question 1

c

Answer to Question 2

a

[CORALGRILL2014]

Gracias!

[kusterl]

TYSM