A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 225Hz . A person on the platform right next to the speaker detects the sound waves reflected off the wall and those emitted by the speaker.

How fast should the platform move, vp, for the person to detect a beat frequency of 1.00Hz ?

Take the speed of sound to be 344 m/s.

Express your answer numerically in meters per second using three significant figures.

yup its correct its: c) b b

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 .

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..