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CH 16 Traveling Waves Problem 16.40 Review Part A The sound intensity level 5.0 m from...
CH 16 Traveling Waves Problem 16.38 Part A What is the sound intensity level for sound...
CH 16 Traveling Waves Problem 16.38 Part A What is the sound intensity level for sound wave of intensity 3.8x10-8 W/m2 Express your answer to two significant figures and include the appropriate units. - Value Unis Units Submit Request Answer Part B What is the sound intensity level for sound wave of intensity 3.8x10-2 W/m2 ? Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer Provide Feedback
CH 16 Traveling Waves Problem 16.41 Review Part A A friend of yours is loudly singing...
CH 16 Traveling Waves Problem 16.41 Review Part A A friend of yours is loudly singing a single note at 395 Hz while racing toward you at 25.8 m/s on a day when the speed of sound is 346 m/s What frequency do you hear? Express your answer with the appropriate units. Value Units Submit Request Answer Part B What frequency does your friend hear if you suddenly start singing at 395 Hz? Express your answer with the appropriate units....
n Review Id During takeoff, the sound intensity level of a jet engine is 150 dB...
n Review Id During takeoff, the sound intensity level of a jet engine is 150 dB at a distance of 22 m. Part A What is the sound intensity level at a distance of 1.0 km? Express your answer to two significant figures and include the appropriate units. НА ? B = 253.7 dB Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining
CH 16 Traveling Waves Problem 16.43 l Review-Part A A bat locates insects by emitting ultrasonic...
CH 16 Traveling Waves Problem 16.43 l Review-Part A A bat locates insects by emitting ultrasonic "chirps" and then listening for echoes from the bugs. Suppose a bat chirp has a frequency of 25 kHz How fast would the bat have to fly for you to just barely be able to hear the chirp at 20 kHz? Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer Part B In what direction would...
CH 16 Traveling Waves Problem 16.42 I Review Part A What is the frequency heard by...
CH 16 Traveling Waves Problem 16.42 I Review Part A What is the frequency heard by a person standing beside the road in front of the car? Express your answer with the appropriate units An opera singer in a convertible sings a note at 600 Hz while cruising down the highway at 90 km/hr Value Units Submit Request Answer Part B What is the frequency heard by a person on the ground behind the car? Express your answer with the...
KCH 16 Traveling Waves Problem 16.35 Review A concert loudspeaker suspended high off the ground emits...
KCH 16 Traveling Waves Problem 16.35 Review A concert loudspeaker suspended high off the ground emits 29.0 W of sound power. A small microphone with a 1.00 cm area is 55.0 m from the speaker Part A What is the sound intensity at the position of the microphone? Express your answer with the appropriate units. Value Units Submit Part B How much sound energy impinges on the microphone each second? Express your answer with the appropriate units. LA Value Units...
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...
1 Review Constants Periodic Table 30 seconds of exposure to 115 dB sound can damage your...
1 Review Constants Periodic Table 30 seconds of exposure to 115 dB sound can damage your hearing, but a much quieter 94 dB may begin to cause damage after 1 hour of continuous exposure. Part A You are going to an outdoor concert, and you'll be standing near a speaker that emits 43 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...
1 Review The sound intensity 53.0 m from a wailing tornado siren is 0.200 W/m² Part...
1 Review The sound intensity 53.0 m from a wailing tornado siren is 0.200 W/m² Part A What is the intensity at 1200 m ? Express your answer with the appropriate units. HÅR O O ? Value Units Submit Request Answer Part B luw/mº. Estimate the maximum The weakest intensity likely to be heard over background noise is distance at which the siren can be heard. Express your answer with the appropriate units. CHÅR O ? Value Units Submit Request...
CH 16 Traveling waves Problem 16.56 24 of 24 Part A I Review A wave on...
CH 16 Traveling waves Problem 16.56 24 of 24 Part A I Review A wave on a string is dascribec by D(E, t) that is the string lens on? Express your answer with the approprlate unlts. (2.00 cm) sin(12.57 Tad/m):r-(638 rad/s)t' is in m end f is ins The ineer density ot tne string is 5.00 g m, where %-| Value Units Submit Request Answer Part B hat is the naximum displacement of a cort on the string? Express your...
CH 16 Traveling Waves Problem 16.38 Part A What is the sound intensity level for sound wave of intensity 3.8x10-8 W/m2 Express your answer to two significant figures and include the appropriate units. - Value Unis Units Submit Request Answer Part B What is the sound intensity level for sound wave of intensity 3.8x10-2 W/m2 ? Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer Provide Feedback
CH 16 Traveling Waves Problem 16.41 Review Part A A friend of yours is loudly singing a single note at 395 Hz while racing toward you at 25.8 m/s on a day when the speed of sound is 346 m/s What frequency do you hear? Express your answer with the appropriate units. Value Units Submit Request Answer Part B What frequency does your friend hear if you suddenly start singing at 395 Hz? Express your answer with the appropriate units....
n Review Id During takeoff, the sound intensity level of a jet engine is 150 dB at a distance of 22 m. Part A What is the sound intensity level at a distance of 1.0 km? Express your answer to two significant figures and include the appropriate units. НА ? B = 253.7 dB Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining
CH 16 Traveling Waves Problem 16.43 l Review-Part A A bat locates insects by emitting ultrasonic "chirps" and then listening for echoes from the bugs. Suppose a bat chirp has a frequency of 25 kHz How fast would the bat have to fly for you to just barely be able to hear the chirp at 20 kHz? Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer Part B In what direction would...
CH 16 Traveling Waves Problem 16.42 I Review Part A What is the frequency heard by a person standing beside the road in front of the car? Express your answer with the appropriate units An opera singer in a convertible sings a note at 600 Hz while cruising down the highway at 90 km/hr Value Units Submit Request Answer Part B What is the frequency heard by a person on the ground behind the car? Express your answer with the...
KCH 16 Traveling Waves Problem 16.35 Review A concert loudspeaker suspended high off the ground emits 29.0 W of sound power. A small microphone with a 1.00 cm area is 55.0 m from the speaker Part A What is the sound intensity at the position of the microphone? Express your answer with the appropriate units. Value Units Submit Part B How much sound energy impinges on the microphone each second? Express your answer with the appropriate units. LA Value Units...
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...
1 Review Constants Periodic Table 30 seconds of exposure to 115 dB sound can damage your hearing, but a much quieter 94 dB may begin to cause damage after 1 hour of continuous exposure. Part A You are going to an outdoor concert, and you'll be standing near a speaker that emits 43 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...
1 Review The sound intensity 53.0 m from a wailing tornado siren is 0.200 W/m² Part A What is the intensity at 1200 m ? Express your answer with the appropriate units. HÅR O O ? Value Units Submit Request Answer Part B luw/mº. Estimate the maximum The weakest intensity likely to be heard over background noise is distance at which the siren can be heard. Express your answer with the appropriate units. CHÅR O ? Value Units Submit Request...
CH 16 Traveling waves Problem 16.56 24 of 24 Part A I Review A wave on a string is dascribec by D(E, t) that is the string lens on? Express your answer with the approprlate unlts. (2.00 cm) sin(12.57 Tad/m):r-(638 rad/s)t' is in m end f is ins The ineer density ot tne string is 5.00 g m, where %-| Value Units Submit Request Answer Part B hat is the naximum displacement of a cort on the string? Express your...
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