The teacher measured the maximum height and the minimum height of ...
5 days ago — ... screen as the wave passed . The teacher repeated his measurements. Table 4 shows the teacher's measurements. Calculate the mean amplitude of the water wave.
By chromatography it's the answer
Answer: A
Explanation: We know that f=p*n
f=50*300=15000 Hz = 15kHz.
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Answer:
C . All of the different types of electromagnetic waves
