Problem 4: An audio engineer takes decibel readings at distances of rl m and r 21 m from a concert stage speaker during a sound check. When he is ry from the speaker, the engineer registers a decibel level of B= 101 dB on his loudness meter. Randomized Variables llm 2=21 m A- 101 dB Part (a) What is the intensity of the sound, I4. in watts per square meter, that is measured by the loudness meter when the engineer is a distance oR from the speaker? Grade Summary Deductions Potential 100% sin() COM) tan) 9. Submissions Attempts remaining (O per atlempt) detaled view asin) E 45 6. acos() sinh cotan() atan() acotan) cosh) Degrees O Radians tanh) cotanh() Submit Hint I give up! Feedback: deduction per feedback. Hints: 0 deduction per hint. Hints remaining4 Part (b) How much power P, in watts, is coming from the speaker during the sound check at dis Part (e) Assuming that the spcaker output does not change between the two measurements at and ra, what sound intensity level B2, in decibels, ce r? will the loudness meter report when the engineer is at a distance r2 from the speaker?
Problem 4: An audio engineer takes decibel readings at distances of rl m and r 21 m from a concert stage speaker during a sound check. When he is ry from the speaker, the engineer registers a decibel level of B= 101 dB on his loudness meter. Randomized Variables llm 2=21 m A- 101 dB Part (a) What is the intensity of the sound, I4. in watts per square meter, that is measured by the loudness meter when the engineer is a distance oR from the speaker? Grade Summary Deductions Potential 100% sin() COM) tan) 9. Submissions Attempts remaining (O per atlempt) detaled view asin) E 45 6. acos() sinh cotan() atan() acotan) cosh) Degrees O Radians tanh) cotanh() Submit Hint I give up! Feedback: deduction per feedback. Hints: 0 deduction per hint. Hints remaining4 Part (b) How much power P, in watts, is coming from the speaker during the sound check at dis Part (e) Assuming that the spcaker output does not change between the two measurements at and ra, what sound intensity level B2, in decibels, ce r? will the loudness meter report when the engineer is at a distance r2 from the speaker?
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