FRIHOST FORUMS SEARCH FAQ TOS BLOGS COMPETITIONS
You are invited to Log in or Register a free Frihost Account!


Ocean wave speed





ocalhoun
A simple question...

Do all ocean waves (and most other waves in water) travel at the same speed? Or does the speed change?

What causes the speed to change or stay constant?
Bikerman
The phase speed of an ocean wave can be very accurately approximated by
c=sqrt(g.λ/(2pi) . tanh(2.pi.d/λ))
(where c is phase speed, λ is wavelength, d is depth and g is approx 9.81m/s^2)

From this is can easily be seen that the important variables are wavelength and depth.
slashnburn99
Nice knew those buttons on my calculator were for something.

bonus point i understand binary

10 = 2
bernardnapoleon
slashnburn99 wrote:
Nice knew those buttons on my calculator were for something.

bonus point i understand binary

10 = 2


lolx! didn't understand the formula he gave... >.< how do you solve 2.pi.d or what does it mean?
Bikerman
bernardnapoleon wrote:
slashnburn99 wrote:
Nice knew those buttons on my calculator were for something.

bonus point i understand binary

10 = 2


lolx! didn't understand the formula he gave... >.< how do you solve 2.pi.d or what does it mean?

Measure the depth (d). pi is approx 3.14159. measure the wavelength (the distance from one wave peak to the next), slot the values into the formula, and voila...you have the speed.
bernardnapoleon
. = multiply?
Bikerman
bernardnapoleon wrote:
. = multiply?

Yes, sorry I should have made that clear. The period is, indeed, an alternative sign for multiply.
bernardnapoleon
thanks... i was considering a decimal point a while ago. haha Very Happy
atul2242
ocalhoun wrote:
A simple question...

Do all ocean waves (and most other waves in water) travel at the same speed? Or does the speed change?

What causes the speed to change or stay constant?


I guess the speed changes would depend upon the salinity of the water, the temprature, the tidal pull, the currents and practically whatever the wetherman throws at you and more.
tony
Bikerman wrote:
bernardnapoleon wrote:
. = multiply?

Yes, sorry I should have made that clear. The period is, indeed, an alternative sign for multiply.


It's an interpunct technically: http://en.wikipedia.org/wiki/Interpunct
Related topics
Politicaly incorrect blonde jokes
Yo mama so fat...
speed of light... speed of dark?!?!
Rockman ZX Walkthrough
faster than light radio transmission
Scientists claim to have broken the speed of light barrier
Speed of thought ?!
Megaman Phoenix
should we care about antartic ice melting?
Tidal Waves Harnessed as Green Energy
Global Warming article - critique and pointers
Radio Wave Speed
Lyrics that touched your heart
Does wave function collapse have a speed
Reply to topic    Frihost Forum Index -> Science -> Earth

FRIHOST HOME | FAQ | TOS | ABOUT US | CONTACT US | SITE MAP
© 2005-2011 Frihost, forums powered by phpBB.