Question
The questions are going over decibels could you show handwritten step by step process how to solve. I been using this chart {{Im having trouble
The questions are going over decibels could you show handwritten step by step process how to solve. I been using this chart {{Im having trouble understanding the difference between further, closer power and intensity}} +3dB=2x +10dB=10X -3dB=1/2 -10dB=1/10 1. The intensity of a signal decreases from 3.6mW/cm2 to 1.8 mW/cm2. Determine the amount of change in decibels. 2. The intensity of an ultrasound signal increasing from 0.2 mW/cm2 to 1.6mW/cm2 3.The amplitude if an ultrasound wave is increased by 4 times. How much does the POWER of the wave increase? 4. The amplitude if an ultrasound wave is increased by 4 times. How will INTENSITY of the wave increase? {What is the difference between 3 and 4 they sounds similar} 5. A small speaker is emitting sounds in all directions . How will the intensity of the sound that you detect change if you more 3 times FURTHER away from the speaker? 6. A small speaker is emitting sounds in all directions . How will the intensity of the sound that you detect change if you more 3 times CLOSER away from the speaker?
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