Asoprano and a bass are singing a duet. while the soprano sings an a-sharp at 932 hz, the bass sings an a-sharp but three octaves lower. in this concert hall, the density of air is 1.20 kg/m and its bulk modulus is 1.42 10 pa. in order for their notes to have the same sound intensity level, what must be (a) the ratio of the pressure amplitude of the bass to that of the soprano and (b) the ratio of the displacement amplitude of the bass to that of the soprano? (c) what displacement amplitude (in m and in nm) does the soprano produce to sing her a-sharp at 72.0 db?

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot