Author Question: A car is going past a radio station at a speed of 40.0 m/s. If the radio station broadcasts at a ... (Read 82 times)

CBme · **on:** Jul 29, 2018

A car is going past a radio station at a speed of 40.0 m/s. If the radio station broadcasts at a frequency of 74.5 MHz, what change in frequency does the driver observe?

A) 9.93 Hz
B) 99.3 Hz
C) 993 Hz
D) 7.45 Hz
E) 74.5 Hz

Question 2

Two electric charges each equal to +Q, are separated by a distance d. If you make a graph of the electric potential as a function of the distance along the line connecting the two charges, the point exactly midway between the two charges would

A) be a relative maximum.
B) be a relative minimum.
C) be neither a relative maximum nor a relative minimum.
D) oscillate between being a relative maximum and a relative minimum.