At a rock concert, a dB meter registered 135 dB when placed 2.3 m in front...
At a rock concert, a dB meter registered 135 dB when placed 2.3 m in front of a loudspeaker on the stage. The intensity of the reference level required to determine the sound level is 1.0×10−12W/m^2.
What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air?
Express your answer to two significant figures and include the appropriate units.
How far away would the sound level be 83 dB?
Express your answer to two significant figures and include the appropriate units.
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At a rock concert, a dB meter registered 135 dB when placed 2.3
m in front...
At a rock concert, a dB meter registered 135 dB when placed 2.3 m in front...
At a rock concert, a dB meter registered 135 dB when placed 2.3 m in front of a loudspeaker on the stage. The intensity of the reference level required to determine the sound level is 1.0 x 10-12 W/m² Part A What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? Express your answer to two significant figures and include the appropriate units. HA ? P= Value Units Submit...
At a rock concert, a dB meter registered 135 dB when placed 2.3 m in front of a loudspeaker on the stage
At a rock concert, a dB meter registered 135 dB when placed 2.3 m in front of a loudspeaker on the stage. The intensity of the reference level required to determine the sound level is 1.0 x 10-12 W/m2 Part A What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? Express your answer to two significant figures and include the appropriate units. Part B How far away would the sound level be...
At a rock concert, a dB meter registered 126 dB when placed 2.4 m in front...
At a rock concert, a dB meter registered 126 dB when placed 2.4 m in front of a loudspeaker on the stage. Part A What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? Express your answer using two significant figures. P- W Submit Request Answer Part B How far away would the sound level be a somewhat reasonable 88 dB? Express your answers using two significant figures. Submit...
At a recent rock concert, a dB meter registered 130 dB when placed 1.40 m in...
At a recent rock concert, a dB meter registered 130 dB when placed 1.40 m in front of a loudspeaker on the stage. (a) What was the power output of the speaker, assuming a hemispherical radiation of the sound and neglecting absorption in the air? (b) How far away would the intensity level be a somewhat reasonable 85 dB?
At a recent rock concert, a dB meter registered 120 dB when placed 1.60 m in...
At a recent rock concert, a dB meter registered 120 dB when placed 1.60 m in front of a loudspeaker on the stage. (a) What was the power output of the speaker, assuming a hemispherical radiation of the sound and neglecting absorption in the air? W (b) How far away would the intensity level be a somewhat reasonable 85 dB? m
At a recent rock concert, a dB meter registered 126 dB when placed 1.30 m in...
At a recent rock concert, a dB meter registered 126 dB when placed 1.30 m in front of a loudspeaker on the stage. (a) What was the power output of the speaker, assuming a hemispherical radiation of the sound and neglecting absorption in the air? W (b) How far away would the intensity level be a somewhat reasonable 85 dB?
At a recent rock concert, a dB meter registered 114 dB when placed 1.70 m in...
At a recent rock concert, a dB meter registered 114 dB when placed 1.70 m in front of a loudspeaker on the stage. (a) What was the power output of the speaker, assuming a hemispherical radiation of the sound and neglecting absorption in the air? _____W 9.12W IS WRONG (b) How far away would the intensity level be a somewhat reasonable 85 dB? _____m
5) At a rap concert, a dB meter registered 130 dB when placed 2.5 m in...
5) At a rap concert, a dB meter registered 130 dB when placed 2.5 m in front of the loud speaker on stage. a) What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? (5 pts) b) How far away would the sound level be 85 dB? (5 pts)
What was the power output of the speaker, assuming uniform spherical spreading of the sound and...
What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? Express your answer to two significant figures and include the appropriate units. Constants At a rock concert, a dB meter registered 125 dB when placed 2.9 Im in front of a loudspeaker on the stage. The intensity of the reference level required to determine the sound level is 1.0 x 10-12 W/m? 勺 ? ' P-1 Value Units Submit...
going to an outdoor concert, and you'll be standing near a You are speaker that emits...
going to an outdoor concert, and you'll be standing near a You are speaker that emits 50 W of acoustic power as a spherical wave. What minimum distance should you be from the speaker to keep the sound intensity level below 94 dB? Express your answer to two significant figures and include the appropriate units.
At a rock concert, a dB meter registered 135 dB when placed 2.3 m in front of a loudspeaker on the stage. The intensity of the reference level required to determine the sound level is 1.0 x 10-12 W/m² Part A What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? Express your answer to two significant figures and include the appropriate units. HA ? P= Value Units Submit...
At a rock concert, a dB meter registered 126 dB when placed 2.4 m in front of a loudspeaker on the stage. Part A What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? Express your answer using two significant figures. P- W Submit Request Answer Part B How far away would the sound level be a somewhat reasonable 88 dB? Express your answers using two significant figures. Submit...
5) At a rap concert, a dB meter registered 130 dB when placed 2.5 m in front of the loud speaker on stage. a) What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? (5 pts) b) How far away would the sound level be 85 dB? (5 pts)
What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? Express your answer to two significant figures and include the appropriate units. Constants At a rock concert, a dB meter registered 125 dB when placed 2.9 Im in front of a loudspeaker on the stage. The intensity of the reference level required to determine the sound level is 1.0 x 10-12 W/m? 勺 ? ' P-1 Value Units Submit...
going to an outdoor concert, and you'll be standing near a You are speaker that emits 50 W of acoustic power as a spherical wave. What minimum distance should you be from the speaker to keep the sound intensity level below 94 dB? Express your answer to two significant figures and include the appropriate units.
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