cobbiegirl1078 cobbiegirl1078
  • 21-12-2017
  • Physics
contestada

A gas-powered lawnmower is rated at 98 db. how many times more intense is the sound of this mower than that of an electric-powered mower rated at 70 db?

Respuesta :

AL2006
AL2006 AL2006
  • 21-12-2017
The gas- powered mower is

(98dB - 70dB) = 28 dB louder.

28 dB = 10^2.8

= 631 times as much sound power.
Answer Link

Otras preguntas

Max is making a rectangular garden that is 5 feet less than twice it's width. If the perimeter of the garden is 89 feet, what will be it's dimensions?
what is 15% of $5.80
solve for x , x^2=92+12^2
evaluate 8-11 to the square root of 25/121
One of the best reasons for the colonies to unite was
what's the answer to v+9/3=8
Two objects were lifted by a machine. One object had a mass of 2 kilograms and was lifted at a speed of 2m/sec. the other had a mass of 4 kilograms and was lift
conquistadors were attracted to the americas by?
Vertical hyphae produce what structures?
Inverse VariationIf I varies inversely with R and I = 0.15 when R = 50, which equation should be used to show this relationship?   A.I=7.5/R  B.I=7.5R  C.IR=0.7