Author Question: A proton is located at the point (x = 1.0 nm, y = 0.0 nm) and an electron is located at the point ... (Read 61 times)

ARLKQ · **on:** Jul 29, 2018

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