Juliana and Asha were using a trumpet to test how sound waves travel. Juliana blew a series of notes through the trumpet, while Asha changed her location around the room in between each trial. Asha used a detector to measure how loudly Juliana was playing the trumpet. Asha put the detector right in front of the trumpet and got a reading of 80 decibels. She then opened the door and went down the hall a short distance, where she got a reading of 50 decibels. How much louder was the trumpet when Asha was standing right next to it than when she was down the hall? A. 30 times B. 300 times C. 100 times D. 1000 times

An experimenter presents a subject with a series of tones. During each trial of the experiment, the experimenter signals the start of the trial by saying “ready,” plays the tone, and then asks whether the subject heard it. The experiment begins with a fairly loud, clearly audible tone; on each subsequent trial, the loudness of the tone is reduced at a constant rate of 10 decibels until the subject does not hear the tone. The experimenter then starts a second series of trials with a tone too low to be heard and increases the volume gradually until the subject reports hearing the tone. What is the experimenter trying to measure?Question 2Answera.difference thresholdb.perceptual defensec.absolute thresholdd.method of limits

A child complaining of hearing loss is found to have a auditory threshold in the left ear of 40 dB, whereas the threshold in the right ear was measured at 10 dB. By what factor was the minimum sound intensity heard in the left ear greater than the minimum sound intensity heard in the right ear?A.3B.4C.30D.1000

Two students are sitting in a classroom. One is sitting in the front row 5 feet from the teacher. The second is sitting in the third row 10 feet from the teacher. The teacher's voice is measured to be 60dB at the front row. How loud will the teacher's voice be at the third row?

Select the correct answer from the drop-down menu.The formula 𝛽=10⁢log⁡(𝐼𝐼0) is used to find the sound level, 𝛽 , in decibels (dB), of a sound with an intensity of I. In the formula, 𝐼0 represents the smallest sound intensity that can be heard by the human ear (approximately 10-12watts/meter2 ).The sound level on a busy street is 70 dB. What is the sound intensity on the street?The sound intensity on the busy street is watts/meter2 .

Juliana and Asha were using a trumpet to test how sound waves travel. Juliana blew a series of notes through the trumpet, while Asha changed her location around the room in between each trial. Asha found that the horn sounded loudest when she was in a direct line from where the sound originated. What is the term for this type of wave? A. latitudinal B. longitudinal C. compressed D. diffracted