Use the inverse square law, thus if you move a distance of 3m away, the sound intensity decrease by 1/3^2= 1/9
Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.
Mathematically can be expressed as,
The upper frequency is 88Hz and the lower frequency is 6, therefore the Bandwidth would be,
The center frequency is given on the basis of the square root of the multiplication of the two reference frequencies, then,
When the metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off, this is an example of resistance, which provides light and heat.
The answer is; C
As can be observed in the diagram, the oceanic plate of the crust is being subducted by the continental plate. This is typical of a subduction zone where two tectonic plates, moving in opposite directions, collide. The heavier plate (usually the oceanic plate due to its ‘wetness’) sinks below the lighter plate (usually the continental plate). An example of a subduction zone is the famous ‘ring of fire’ region in the Pacific.
