Mathematics, 05.05.2022 08:20 charlottiechecketts0

L = loudness, in decibels (dB); I = sound intensity, in watts/m2; I0 = 10−12 watts/m2 The loudness of a jack hammer is 96 dB. Its sound intensity is about 0.004.
The loudness of a compactor is 94 dB. Its sound intensity is about 0.0025.
The sound intensity of the jack hammer is about 1.6 times the sound intensity of the compactor.
The loudness of a pile driver is 112 dB. About how many times the sound intensity of the jackhammer is the sound intensity of a pile driver? Round to the nearest ten.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 21:00, kfliehman1

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y

Answers: 2

continue

Mathematics, 22.06.2019 00:00, tae1731

Plz hurry finals a paper cup in the shape of an inverted cone is 8 inches tall and has a radius of 1.5 inches. how much water can the cup hold? use 3.14 for pi. round the answer to the nearest tenth. a) 12.6 cubic in. b) 18.8 cubic in. c) 37.7 cubic in. d) 56.5 cubic in.

Answers: 2

continue

Mathematics, 22.06.2019 02:00, LJ710

Select the correct answer. which exponential function has an x-intercept? oa. (x) - 100x-5-1 ob. (x) = 3x4+2 oc. kx) = 7x-1 + 1 od. 1(x) =-3x+1 - 3

Answers: 1

continue

Mathematics, 22.06.2019 03:30, apalacios3503

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?

Answers: 3

continue

You know the right answer?

L = loudness, in decibels (dB); I = sound intensity, in watts/m2; I0 = 10−12 watts/m2 The loudness...