Lorenzolxb4661 Lorenzolxb4661

11-01-2020
Physics

contestada

The sound intensity level 5.0 m from a point source is 95 dB. At what distance will it be 75 dB?

Respuesta :

Manetho Manetho

11-01-2020

Answer:

47.86 or 50 m

Explanation:

Source = 95 + (20log(5) + 10log(4pi)) = 119.96 dB

75 - 119.96 + 10log(4pi) = -33.61

-33.61/-20 = log(distance)

10^1.68 = distance = 47.86m

47.86 or 50 m is the correct ans

Answer Link

Otras preguntas

i need help i know i said this already but i need it 17.18 + 44.36

What is the area of the shape?

Question 2 of 10 Which type of energy resource is most dependent on weather conditions? A. Fossil fuels B. Geothermal energy C. Nuclear energy D. Solar energy S

An example of a push factor would be

the Berlin airlift, established to get supplies to the people of Berlin, lasted how long? A. 1 day B. 1 month C. 1 year

the density of gold is 19kg/cm³ find the volume of a) 38g b)0.095kg. solve this question and give explanation i will mark you as brainlist

2. List the hormones secreted by the thyroid, describe their general actions, and explain how they affect target cells and tissues. Please use lesson and reliab

Does Rational database software lets you link multiple tables? Yes or no

How does forming in a restricted space affect the structure of a crystal.

The length of a rectangle is three times the width. The perimeter is 96 cm. Find the length and width of the rectangle.