A system of 8 electrons, 18 protons, and 4 neutrons has a net ...

[genevieve1028]

A system of 8 electrons, 18 protons, and 4 neutrons has a net charge of
 a. 16.0  10-19 C.
  b. 16.0  10-19 C.
  c. 22.4  10-19 C.
  d. 10.0  10-19 C.
  e. 22.4  10-19 C.

Question 2

A laser beam ( = 694 nm) is incident on two slits 0.100 mm apart. Approximately how far apart (in m) will the bright interference fringes be on the screen 5.00 m from the double slits?
 a. 3.47  103
  b. 3.47  102
  c. 3.47  104
  d. 3.47  106
  e. 3.47  105

[jesse.fleming]

Answer to Question 1

a

Answer to Question 2

b