Problem 1: An audio engineer takes decibel readings at distances of r = 14 m and r, = 22 m from a concert stage speaker during a sound check. When he is r, from the speaker, the engineer registers a decibel level of B1 = 117 dB on his loudness meter. Randomized Variables r1 = 14 m r2 = 22 m B1 = 117 dB Part (a) What is the intensity of the sound, I, in watts per square meter, that is measured by the loudness meter when the engineer is a distance of r, from the speaker? I = sin() cos() tan() 8 HOME cotan() asin() acos() 4 6. atan() acotan() sinh() 1 2 tanh() ODegrees O Radians cosh() cotanh() END vol BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Part (b) How much power P, in watts, is coming from the speaker during the sound check at distance r1? Part (c) Assuming that the speaker output does not change between the two measurements at r and r2, what sound intensity level B2, in decibels, will the loudness meter report when the engineer is at a distance rz from the speaker?

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**Problem 1:** An audio engineer takes decibel readings at distances of \( r_1 = 14 \, \text{m} \) and \( r_2 = 22 \, \text{m} \) from a concert stage speaker during a sound check. When he is \( r_1 \) from the speaker, the engineer registers a decibel level of \( \beta_1 = 117 \, \text{dB} \) on his loudness meter.

**Randomized Variables**
- \( r_1 = 14 \, \text{m} \)
- \( r_2 = 22 \, \text{m} \)
- \( \beta_1 = 117 \, \text{dB} \)

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### Part (a)
What is the intensity of the sound, \( I_1 \), in watts per square meter, that is measured by the loudness meter when the engineer is a distance of \( r_1 \) from the speaker?

\[ I_1 = \text{(input box)} \]

### Calculator
- Functions available: sin(), cos(), tan(), cotan(), asin(), acos(), atan(), acotan(), sinh(), cosh(), tanh(), cotanh()
- Constants: \(\pi\), \(e\)
- Modes: Degrees, Radians
- Inputs: Numeric keypad

Buttons:
- **Submit** 
- **Hint**
- **Feedback**
- **I give up!**

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### Part (b)
How much power \( P \), in watts, is coming from the speaker during the sound check at distance \( r_1 \)?

### Part (c)
Assuming that the speaker output does not change between the two measurements at \( r_1 \) and \( r_2 \), what sound intensity level \( \beta_2 \), in decibels, will the loudness meter report when the engineer is at a distance \( r_2 \) from the speaker?
Transcribed Image Text:**Problem 1:** An audio engineer takes decibel readings at distances of \( r_1 = 14 \, \text{m} \) and \( r_2 = 22 \, \text{m} \) from a concert stage speaker during a sound check. When he is \( r_1 \) from the speaker, the engineer registers a decibel level of \( \beta_1 = 117 \, \text{dB} \) on his loudness meter. **Randomized Variables** - \( r_1 = 14 \, \text{m} \) - \( r_2 = 22 \, \text{m} \) - \( \beta_1 = 117 \, \text{dB} \) --- ### Part (a) What is the intensity of the sound, \( I_1 \), in watts per square meter, that is measured by the loudness meter when the engineer is a distance of \( r_1 \) from the speaker? \[ I_1 = \text{(input box)} \] ### Calculator - Functions available: sin(), cos(), tan(), cotan(), asin(), acos(), atan(), acotan(), sinh(), cosh(), tanh(), cotanh() - Constants: \(\pi\), \(e\) - Modes: Degrees, Radians - Inputs: Numeric keypad Buttons: - **Submit** - **Hint** - **Feedback** - **I give up!** --- ### Part (b) How much power \( P \), in watts, is coming from the speaker during the sound check at distance \( r_1 \)? ### Part (c) Assuming that the speaker output does not change between the two measurements at \( r_1 \) and \( r_2 \), what sound intensity level \( \beta_2 \), in decibels, will the loudness meter report when the engineer is at a distance \( r_2 \) from the speaker?
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