Your schools choir consisting of 10 singers gives a performance producing a sound intensity of 100 db. at a point in the performance one of the singers steps forward and sings a solo with a sound intensity of 90 db. a how many times more intense is the full 10 person choir than the soloist alone? show your work b. after singing for a few minutes the soloist rejoins the choir. a second choir consisting of 90 additional singers, then joins in. each group of 10 singers sings with the same intensity as the first 10 person choir. now how many decibels of sound intensity are being produced? show your work c. a few weeks later you attend a rock concert at which the band plays at 120 d. how many times more intense is the rock concert than the choir concert? show you work
Answers: 1
Physics, 21.06.2019 18:10, montgomerykarloxc24x
Awheelhas a radius of 4.8 m. howfar (path length) does a point on the circumference travel if thewheel is rotated through angles of 30°, 30 rad, and 30 rev, respectively?
Answers: 3
Physics, 22.06.2019 09:50, ggcampos
Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors
Answers: 1
Your schools choir consisting of 10 singers gives a performance producing a sound intensity of 100 d...
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