When i stand halfway between two speakers, with one on my left and one on my right, a musical note from the speakers gives me constructive interference. how far to my left should i move to obtain destructive interference?

B. Half a wavelength

Explanation:

When i stand halfway between two speakers, with one on my left and one on my right, a musical note from the speakers gives me constructive interference. how far to my left should i move to obtain destructive interference?

a. One-fourth of a wavelength

b. Half a wavelength

c. One wavelength

d. One and half a wavelengths

e. Two wavelengths

Destructive interference occurs when the right speaker is half a wavelength further away than the left. Let "d" represents distance from each speaker to the me, the listener. To achieve destructive interference, I would have to calculate the distance in terms of wavelength as thus:

(d + wavelength/4) - (d - wavelength/4) = half a wavelength/4

Put in a different term, the path difference must be half a wavelength. Whatever that amount is, you can achieve this path difference by moving half that amount.

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))