Jumat, 12 Juli 2013

How many times more intense than the 60-dB sound of a person talking loudly?

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EDWIN C


How many times more intense than the 60-dB sound of a person talking loudly in the 100 dB sound of a power lawn mower?


Answer
10 decibels increase is a 10-fold increase in intensity
20 decibels is 10 times stronger than that (100-fold increase)
30 decibels is 1000 times stronger

etc etc etc

So you are going up by 40 dB. Figure out the increase.

Why wont my lawn mower start or turn or anything?




Alton


i was cutting the grass today on my ridding 18.5hp B&S huskee mower and it ran out of gas so i went to get gas for it, then i put gas in it, and it wouldn't turn, start or make any noise, so i decided to jump it and still nothing at all. gas does go to my carb. it just won't crank nor even try to do anything while i was jumping it. i tried taking the battery off and just hooking up my jumper cable to my positive and negative terminals, still nothing coming from a 1000 crank amps battery. i have a 20 amp fuse in it since its one of the newer models and its not broken.everything was working all well before it ran out of gas then i filled it up and wont turn, crank, or make a noise with and without jumping it.


Answer
Even on newer mowers, there is a breaking in process. Let the mower sit for 1/3 hour then try. If there is still nothing, check the oil filter, and the air intake filter. -Birdy (USA)




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