Protons and electrons 1) repel each other. 2) attract each ...

[storky111]

Protons and electrons
 
  1) repel each other.
  2) attract each other.
  3) do not interact with each other.
 
  If the distance between a proton and an electron is doubled, the electrical force is
  4) 1/4 as much.
  5) 1/2 as much.
  6) the same.
  7) twice as much.
  8) four times as much.

Question 2

An astronaut falling into a black hole would see events toward the singularity
 
  1) red shifted,
  2) blue shifted,
  3) with no shift,
 
  and she would see events from the outside normal universe
  4) red shifted.
  5) blue shifted.
  6) with no shift.

[gasdhashg]

Answer to Question 1

Answer: 2, 4

Answer to Question 2

Answer: 1, 5

[storky111]

Excellent

[mammy1697]

Gracias!