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How far away is mesosphere for earth?
he mesosphere starts at 50 km (31 miles) above Earth's surface and goes up to 85 km (53 miles) high.
How far away is the South Pole from Montgomery Alabama?
The South Pole is 8,448 miles from Interstate 85 at Union Street. It's a few miles closer to South Boulevard, and a few miles farther from Northern Boulevard and most of Maxwell.
How many decibels is a shout?
Decibels (dB) is the unit for expressing the relative loudness of sounds. Humans can range from 10 dB to over 90 dB depending on the type of speach. Wispers range 10 to 15 dB, average converstation 50 to 60 dB and shouting 85 to 90 dB. Note that this is just an indication as each person speaks at a different loudness.
How far away can you hear a motorway?
For many vehicles, the road contact noise will be larger than the noise from engine or exhaust. Even inside the vehicle, the noise level will vary from 70db or so for a noisy car, down to 40dB for a quality car. Outside the car, the sound level should not be greater than 80 dB at say 3m. It varies widely with type of engine, type of car, and speed.
How many cubic yards of dirt will he have to hall away if the dimensions are 700 ft by 200 ft and the depth is 85 ft?
27
At what noise level and your ability to hear be affected?
85 decibels.
What can happen in a contn uous noisy environment over 85 decibels?
You get a headache and then your eardrums blow away.
How many decibels do beats headphones reach?
85 decibels maximum.
What is the level of noise that affect hearing?
85 decibels.
How loud is 43 decibels?
Fundamentally, 43 decibels is loud. It is probably enough to annoy neighbors, but anything 85 decibels is enough to hurt hearing.
Normal conversation is usually about decibels while noise at decibels or higher can start to damage your hearing?
65; 85
At what noise level is your hearing negatively affected?
85 decibels
How far is mesosphere from the earth?
The answer is 85km
What can happen in a continuous noisy envionment over 85 decibels?
You get a headache if you do not like the music.
What level of sound is Dangerous?
A dangerous sound is anything that is 85 db (decibels) or higher.
What is the highest decibel level that earphones should allow in order to avoid damaging the hearing of a person?
Any sound above 85 decibels can be damaging to your ear drums. To mitigate this, earphones should be capped between 80 and 85 decibels because prolonged usage above 85 can be very damaging.
How do you calculate sound pressure level of a fire alarm horn?
Use a sound pressure level meter. But don't forget to mention the distance when you write down the value in decibels. The more far away you are from the horn the lower is the measured level. A dB value without the distance is useless. For example, the UL standard for smoke alarms is 85 dB at 10 feet.
