A sound level of 62dB is measured at a distance of 44m from a lion when it roars. What sound level would be measured 16m from the lion?
A sound level of 62dB is measured at a distance of 44m from a lion when...
a sound is initially at a decibel level of 70dB when measured a distance of 15m from the source. how far from the sound would you have to be for the decibel level to be 45dB?
5. A sound source has an intensity I1 and when its sound level is measured at a fixed distance the found value is 70 dB. The source increases its intensity to I2 and when its sound level is measured at the same distance the found value is 96 dB. What is the I2 / I1 ratio?
The sound intensity from a rock band is measured to 120dB at a distance of 10 m. What is the sound intensity at a distance of 100 m? Choose the closest. a) 120dB b) 110dB c) 100dB d) 90dB e) 80dB f) 70dB
1)The sound level at a distance of 1.82 m from a source is 146 dB. At what distance will the sound level be 50.7 dB? Answer in units of m. 2)At what distance will the sound level be 7.22 dB? Answer in units of m.
The sound level at a distance 3.00 m away from a source is 120 dB. At what distance will the sound level decrease to 100 dB?
A person standing a certain distance from ten identical loudspeakers is hearing a sound level intensity of 123 dB. What sound level intensity would this person hear if four are turned off?
what would the sound power level be for a measured sound power of 10^-10W. (answer in dB spol)
A person standing a certain distance from ten identical loudspeakers is hearing a sound level intensity of 115 dB. What sound level intensity would this person hear if eight are turned off? (in dB)
At a distance of 73 cm, a mosquito can barely be heard at a sound level of 4.1 dB. What is the intensity of this sound? If the same mosquito were flying at a distance of 1.3 cm from your ear, what would be the intensity of its sound? If there were two mosquitoes 1.3 cm from your ear, how loud would they sound? (dB). How loud would the mosquito sound at 1.3 cm from your ear (dB)? Hint: sound...
2. (2 pts) A sound level of 150 dB is measured at 2 meters from a jet engine. Find the sound intensity B of the jet engine at a distance of 20 meters assuming intensity falls off as 1/2. (Hint: First find intensity at 150 dB sound level.) 150dB 150d. B = 10Log G-1z) = 1000 W/m2 B (dB) = 2 m. B = I=100x701450) - 1000 W/m2 1000 11/12 = 'rz 2009 10-12