Free Republic
Browse · Search
General/Chat
Topics · Post Article

To: Lady Lucky

I always wondered this about waves-

If two waves are traveling in such a way that they cancel each other out, then how is energy still transferred past the point where they cancel?

Would you have a perfectly flat spot in the ocean -where all waves cancel each other- suddenly a wave appears on the opposit end?


49 posted on 11/18/2011 9:41:20 AM PST by Mr. K (Physically unable to proofreed <--- oops, see?)
[ Post Reply | Private Reply | To 8 | View Replies ]


To: Mr. K
Would you have a perfectly flat spot in the ocean -where all waves cancel each other- suddenly a wave appears on the opposite end?

I do believe you're conflating transverse waves (motion of particles perpendicular to the motion of the wave) and longitudinal waves (motion of particles parallel to the motion of the wave).

Water waves are confusing because they involve both types of motion. G'rrr.

Here's a website which gives a good run down:

Mechanical Waves.

And a link therein.

If you think that's weird, then feast your eyes on this:

Slinky Defies Gravity

Cheers!

74 posted on 11/18/2011 8:55:50 PM PST by grey_whiskers (The opinions are solely those of the author and are subject to change without notice.)
[ Post Reply | Private Reply | To 49 | View Replies ]

To: Mr. K
If two waves are traveling in such a way that they cancel each other out, then how is energy still transferred past the point where they cancel?

Would you have a perfectly flat spot in the ocean -where all waves cancel each other- suddenly a wave appears on the opposit end?

If two water waves of equal amplitude and exactly opposite direction are passing each other, they don't cancel out to make a flat surface. They form a stationary wave that goes up and down but doesn't appear to move sideways. In this wave there are parallel lines on the surface along which there is no up and down motion. So the wave is essentially cancelling out along these nodal lines. How does the wave energy get past these lines? Water sloshes back and forth under the surface.

86 posted on 11/20/2011 1:02:39 AM PST by wideminded
[ Post Reply | Private Reply | To 49 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson