Answer:
1. b
2. d
3. e
4. c
5. a
Explanation:
These are just basic definitions. Let me know if you need further clarification.
Pulling a dogs leash: inertia
the awnser to ur question is D
Beat frequency, fb = |f2-f1|
That is, beat frequency is the absolute difference between two frequencies. Is is as a results of destructive and constructive inferences.
Therefore, in this case:
fb = 203 - 199 = 4 Hz