A recording timer is used to produce a section of ticker tape. 165 dots were
produced over a 2.5 s time interval.
a) Determine the period of the timer. 0.015 seconds
b) Determine the frequency of the timer. 66 hertz
c) What is the change in time between the ninth and thirteenth dot?
Im taking this online and for this quiz it didn't have the answers to check your work, I'm just unsure of how to do C.
T=(change in time)/N(vibrations) f(frequency)=N/(change in time)
The Attempt at a Solution
T=(change in time)/N 0.015=(change in time)/4 = 0.06 seconds