Select the correct answers from the drop down menu. The formula ? =10log(I/Ia) is used to find the sound level, ?, in decibels (
dB), of a sound with an intensity of I, In the formula, I0 represents the smallest sound intensity that can be heard by the human ear (approximately 10-12 watts/meter^2). The sound level on a busy street is 70 dB. What is the sound intensity on the street?
The sound intensity on the busy street is __ watts/meter^2.
a. 10^-5
b.10^-10
c.10^-1
The sound intensity on the busy street is __ watts/meter^2.
a. 10^-5
b.10^-10
c.10^-1
2 answers:
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25.7 is 18.23% of 141.
Step-by-step explanation:
Let,
The percent be x.
Therefore,
x% of 141 = 25.7
Changing percent into 100 and multiplying x with 141.
1.41x = 25.7
Dividing both sides by 1.41
25.7 is 18.23% of 141.
Keywords: percentage, division
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Answer: The required value would be 0.000013.
Step-by-step explanation:
Since we have given that
0.001 % of
As we know that
To remove the % sign we should divide it by 100.
Mathematically, it would be expressed as
Hence, the required value would be 0.000013.