A proton is located at the point (x = 1.0 nm, y = 0.0 nm) and an ...

[ARLKQ]

A proton is located at the point (x = 1.0 nm, y = 0.0 nm) and an electron is located at the point Find the magnitude of the electrostatic force that each one exerts on the other. (k = 1/40 = 9.0  109 N  m2/C2, e = 1.6  10-19 C)
 
  A) 1.4  10-11 N
  B) 5.3  10-18 N
  C) 5.3  108 N
  D) 5.9  10-15 N

Question 2

What is the frequency does a stationary observer hear when a train approaches her with a speed of 30 m/s. The frequency of the train horn is 0.600 kHz and the speed of sound is 340 m/s.
 
  A) 551 Hz
  B) 600 Hz
  C) 653 Hz
  D) 658 Hz

[Edwyer]

Answer to Question 1

A

Answer to Question 2

D

[ARLKQ]

TYSM

[bbburns21]

Excellent