Question

what is work,power and energy write (I) frequency of ultrasound (ii) frequency of human ear​

Answer 1

Answer:

frequency of ultrasound = 20,000hertz

Explanation:

frequency of human ear =20hz to 20khz

Answer 2

Answer:

*work is the energy transferred to or from an object via the application of  force along with a displacement. In its simplest form, it is often represented as    the product of force and displacement.  

*we can say that an object is doing work when there is a force acting on it a work, it is the work done displacement is there.

* power is the rate of doing work, it is the work done in unit time. The SI unit of power is Watt (W) which is joules per second (J/s).

*power =  work-done / time-taken

*frequency of ultrasound is 20,000 Hz or 20,000 hertz or 20 kHz.

* frequency of human ear is 20 Hz to 20 kHz.