Question: Answer questions 1 to 4. 1 Using the following figure, determine the frequency, period and amplitude of this sound wave. 10 8 Amplitude 0 1

Answer questions 1 to 4. 1 Using the following figure, determine the frequency, period and amplitude of this sound wave. 10 8 Amplitude 0 1 2 3 4 5 6 Temps (1115) 2 Compare (the similarities and differences) of the following two sound waves using characteristics of frequency and intensity. 10 8 Amplitude O -10 Temps (m5) Amplitude 0 0.5 1 1.5 2 2.5 3 Temps (sec) 3. If the acoustic intensity of a sound is increased by 6 times, by how many decibels will the sound level of this sound increase? 4. Four speakers produce 42, 31, 24 and 12 dB respectively and work together. Determine the total sound level produced

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