ahadMSO
07-21-2011, 08:20 PM
Que 1 :A stone is dropped from the top of a cliff. The splash it makes when striking the water Qubelow is heard 6.2s later.How high is the cliff?
How high is the cliff?
Que 2 : What is the sound level of a sound whose intensity is 2.8×10−6 w/m2?
=http://session.masteringphysics.com/render?tex=%5Cbeta
Que 3 : A 45 http://session.masteringphysics.com/render?units=dB sound wave strikes an eardrum whose area is 5.3×10−5 http://session.masteringphysics.com/render?units=m%5E2.
How much energy is absorbed by the eardrum per second? At this rate, how long would it take your eardrum to receive a total energy of 2.4 http://session.masteringphysics.com/render?units=J?
How high is the cliff?
Que 2 : What is the sound level of a sound whose intensity is 2.8×10−6 w/m2?
=http://session.masteringphysics.com/render?tex=%5Cbeta
Que 3 : A 45 http://session.masteringphysics.com/render?units=dB sound wave strikes an eardrum whose area is 5.3×10−5 http://session.masteringphysics.com/render?units=m%5E2.
How much energy is absorbed by the eardrum per second? At this rate, how long would it take your eardrum to receive a total energy of 2.4 http://session.masteringphysics.com/render?units=J?