Physics, 11.07.2019 21:40 elicollierec
Acertain siren radiates sound uniformly in all directions. at a distance of 17 m from the siren, the intensity level is 49 db. how many watts of power does this siren put out? the threshold of human hearing is 1.0 × 10-12 w/m2.
Answers: 2
Physics, 22.06.2019 01:30
The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection
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Physics, 22.06.2019 10:10
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
Acertain siren radiates sound uniformly in all directions. at a distance of 17 m from the siren, the...
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