Those are the factors of the number 60, in descending order. The next factor is 10.
71,73 and 101,103 are the next two twin primes after 60.
The next number should be 80.
10 The sequence is given by xn = 60/n
It is difficult to be specific because busy street traffic and quiet radio are not standard volumes of sound.However, a quiet radio - at around a "normal" conversation level is 60 decibels (dB). A busy street is can range from the low 70 to high 80 dB. Let us say 80 dB.The difference is 20 dB = 2 Bels. This means the street is 10^2 = 100 times as loud.
Twice as loud. Decibels are measured on a logarithmic scale, so an increase of 20 decibels represents a tenfold increase in intensity.
Half as loud in decibels is about a 10 dB decrease. For example, if a sound is initially at 70 dB, half as loud would be around 60 dB.
40 dB gain change should give about the ratio of 16 for sensed volume and loudness, 40 dB gain change gives the ratio of 100 for measured voltage and sound pressure and 40 dB gain change gives the ratio of 1000 for calculated sound power and acoustic intensity. Go to the link: Subjectively perceived loudness (volume), objectively measured sound pressure (voltage), and theoretically calculated sound intensity (acoustic power).
An average rooster's crow is approximately 90 decibels. This is about as loud as a dog barking. Chickens themselves average 60-70 decibels, which is on par with human conversation.
The range of 60-70 decibels sound pressure level is about as loud as normal conversation in 1 meter distance. The distance from the ears to the sound source is very important to the value of the SPL. Scroll down to related links and look at "Table of Sound Pressure Levels". Decibel Table - Comparison Chart - Table of Sound Levels and corresponding Sound Pressure and Sound Intensity - Units and Quantities.
A normal conversation has a loudness (decibels level) of about 60 dB. As iy approached 70 dB it would be come loud.
140 dB A normal conversation is about 60 dB (Just to let you know how loud fireworks are)
Elephants can produce sounds ranging from 5 to 115 decibels, with loud trumpeting reaching around 90 to 110 decibels. For comparison, a typical conversation is around 60 decibels.
60
The optimum sound level for a human being is around 60-70 decibels for regular conversation and activities. Prolonged exposure to sounds above 85 decibels can be damaging to hearing. It is important to protect your ears from loud noises to prevent hearing loss.
Go through the chart at the link below. Scan the whole chart; some levels are described more than once. Normal conversation is about 60 decibels, and ordinary piano practice is between 60 and 70 decibels.
That is a level in decibels and shows a ratio.