(b) A sphere of radius 1 cm vibrates with a volume velocity of 1 × 104 m³/s at frequency of 2000 Hz, parallel to a wall as shown in Figure Q4(b). What will be the sound pressure level in dB at point A: i. With the wall absent; ii. With the wall present. 2m 2m Wall Figure Q4(b)
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Q: This is what I have for step 1 and I'm pretty sure it's incorrect:1/-9.07 - 1/25.2 = -0.1499361229
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Need clean and in proper form answer , vll upvote
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