Acertain source of sound waves radiates uniformly in all directions. at a distance of 14 m from the source the intensity level is 67 db. what is the total acoustic power output of the source, in watts? (note: the reference intensity i 0 is 1.0 × 10-12 w/m2.)

Explanation:

It is given that,

At a of 14 m from the source the intensity level is 67 db. We need to find the total acoustic power output of the source. The intensity level is given by :

(reference intensity)

or

Output power is given by :

P = 0.0123 watts

So, the output power of the source is 0.0123 watts. Hence, this is the required solution.

answer: a ball

explanation: because it will bounce

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .