Ocean Definition and 190 Threads

Homework Statement I'm trying to understand the concept of pressure in fluids. The pressure at 10m below the surface of the ocean is about 2.00×10^5 Pa. Now consider he pressure at 20m below the surface of the ocean. This pressure is: a) twice that at a depth of 10m. b) the same as that at a...

Attached is a picture of the object that I am trying to figure out the forces due to currents that will be acted on it. Here are the questions I have ( I really just need some direction in the area of appropriate formulas) 1) what are the force againts the surface of the collector in foot...

From EurekAlert, 16 April. Mysterious striped currents in our oceans IT’S amazing that nobody has spotted it before. Superimposed on every ocean on the planet there is a striped pattern of currents. Yet what causes them is a mystery. Between 1992 and 2003, Peter Niiler of the Scripps...

Roughly estimate the maximum deceleration of the aircraft parts.

how would the Earth be affected by global warming in terms of the sea level , global ocean circulation, and oxygen isotopes?

a) Calculate the pressure at an ocean depth of 550 m. Assume that the density of sea water is 1022 kg/m3 and that the air above exerts a pressure of 101.3 kPa. b) At this depth, what force must the frame around a circular submarine porthole having a diameter of 32.0 cm exert to counterbalance...

Hello everyone, first post on this forum... Recently I've been trying to understand how ocean currents work from a general perspective. While studying, an intrigueing question popped up in my mind, and I haven't been able to let it go unanswered. It is simply: If the Earth was a...

Hello, I am trying to use Euler's equations to model on a computer the waves that form in the ocean when high-speed winds blow overhead. I'm modeling it in two dimensions, like looking through a camera that is half below and half above the water surface, as winds blow along the water. The lower...

Homework Statement Hello. This is not a homework question (my school will never offer a fluid dynamics course), but I figure this would be the best place to ask it. I am interested in writing a computer model of high speed winds blowing over the ocean - or anybody of water. I am wondering...

Homework Statement Two spheres, with volume 0.1m^3, and masses M1=200kg and M2=15kg, are connected by a thin wire. They are dropped into the ocean (assume Rho=1000kg/m^3) and allowed to sink Homework Equations The Attempt at a Solution I know buoyancy = Rho * g * V Buoyancy +...

The speed of sound in water is 1498 m/s. A sonar signal is sent from a ship at a point just below the water surface and 1.80 s later the relfected signal is detected. How deep is the ocean beneath the ship?

Homework Statement While exploring a sunken ocean liner, the principal research found the absolute pressure on the robot observation submarine at the level of the ship to be 413 atmospheres. The density of the surrounding saltwater was 1025kg/m^3. Calculate the gauge pressure on the sunken...

Recently another study is about to fuel the climate scare: http://www.terradaily.com/reports/Global_Warming_Of_The_Future_Is_Projected_By_Ancient_Carbon_Emissions_999.html That Paleocene Eocene Thermal Maximum was something completely different. The most likely explanation, that is, the...

A geological survey ship mapping the floor of the ocean sends sound pulses down from the surface and measures the time taken for the echo to return. How deep is the ocean at a point where the echo time (down and back) is 7.07 s? The temperature of the seawater is 25°C. Find the answer in km...

http://www.newscientist.com/article.ns?id=mg19125676.000&print=true Ooopsies. We guessed and guessed wrong. Then we guess again that we weren't actually wrong, it is just that the plankton are deficient in specfic nitrates and iron. That's the vibe I got.

If ocean levels go up enough, will they have an impact on the Earth's rotational speed and the Moon's orbital radius? If so what will the effect be? It seems that all these things are tide to one another.

What's going on here? It doesn't seem like it would work well at all. I remember popular science said something about how little power it produced. Reminds me of a Carnot engine. http://en.wikipedia.org/wiki/Carnot_cycle Is this a good idea, or should I stick with nuclear fusion reactors?

I have to list the temperature (cold or warm, the black ones "are the same temperature as the current leading into it") of the following currents: North Atlantic Labrador (Newfoundland) Oyashio (Japan) Alaska California Gulf Stream Canary (NWAfrica) Kuroshio (Taiwan) Peru...

Rather than clutter the FEG thread, here's different idea along the same lines of renewable electrical power generation. Featured on "Discoveries This Week" on Discovery channel, the reps from this firm claim they can generate the power needs of CA from a 100 sq mile installation offshore, and...

This isn't actually a homework question, but it does relate to a research project I'm doing relating to wind/ocean turbines. What I'd like to be able to do is state that: There is as much energy in an ocean current moving at "X" knots as there is in an air current moving at "Y" kph. I tried...

Hi, If a heat flux of of 3W/ meter squared covered the 3.6 X 10^14 meters squared ocean surface and contributed only to a change in temp, how many years to raise average temp of ocean 1 degree C? I calculated the specific heat of seawater which is 4,000 joules. I am stuck!

Will anybody let me know what is the relation between the moon's gravitation and the level of ocean in earth?As far I know that during newmoon and full moon day the level of ocean increases.

this is homework problem I'm having some trouble with... i haven't had chemistry yet so I'm not sure how i could convert atoms into kg, and the textbook i have doesn't do any examples of problems like this one... i don't even know where to begin. Deuterium (A=2, Z=1) is an attractive fuel for...

1) How firm is the data ;-) this week ;-) , (ya got to love how fast & furrious new info is coming in these days), that there IS an ocean under all that ice? Last I read opinions were fairly split between "Pretty sure there's an ocean down there" & "Naw, more like a slushy mush. Picture a very...

Apparently true... http://www.goofball.com/news/condom_reef It seems that the country of origin can be identified by the length.

I look at the Mars images every day. There has been discussion of chunky areas that resemble pack ice on Earth. The latest photographs, look like a suddenly frozen ocean. I can't imagine what might have caused that to happen. But the sand dunes look much more like water waves than sand waves, at...

When I look at a map which shows the sea floors I see canons at the base of large rivers which tend to fork out and travel long across the ocean floor. It looks very much like they were carved by the river. What are these and what caused them?

An object with a density of 681.0 kg/m3 and a mass of 1183.0 kg is thrown into the ocean. Find the volume that sticks out of the water. (use pseawater = 1024 kg/m3)

Brian Greene in "The Fabric of the Cosmos" gives the above three as indirect, universal fields in which we exist but have not yet directly detected. Could they be mathematically interlinked among themselves or with immediately observable phenomena?

While exploring a sunken ocean liner, the principal researcher found hte absolute pressure on the robot observatino submarine at the level of the ship to be about 413 atmospheres. The density of seawater is 1025-kg/m^3. Calculate the gauge pressure p_g on the sunken ocean liner...

Suppose that the Ocean Liner came to rest at teh surface of the ocean before it started to sink. Due to the resistance of the seawater, the sinking ocean liner then reached a terminal velocity of 10 m/s after falling for 30s. 1.Determine the magnitude "a" of the average acceleration of the...

True or False: When Queen Elizabeth throws the last sip of tea over Queen Mary's rail the ocean gets a little warmer? I want to say it is false because of how large the ocean is, but he heat of the tea has to go somewhere right? Which makes me want to say true. :confused:

http://www.eurekalert.org/pub_releases/2005-01/agu-ccc011705.php

"Hot" Water I have this problem in class that I could not solve. Could some one please help me? I have 100mL of water made with tritium (radioactive isotope of hydrogen). If I were to pour this 100mL of hot water into the ocean (given the volume of the ocean is 1.3*(10^18)m^3) how many...

http://www.spacedaily.com/2004/040827174145.s71k5at1.html

If we imagine a fluid traveling through a pipe as being a warm current of sea-water moving over a cold denser layer of sea-water, with the air immediately above the warm current forming one wall of the pipe, would the pressure of the warm current decrease as the current travels faster,and if...

Will science and technology someday allow really highly developed ocean cities with an underwater sector with lights illuminating and stuff and an above water sector where you travel on say flying scooters. Fast speed trains could connect the cities. I guess right now the constraints are...

The problem states: A microphone in the ocean is sensitive to sounds emitted by popoises. To produce a usable signal , sound waves striking the microphone must have an intesity of 10.6 dB. If porpoises emit sound waves with a power of 0.0502 W, how far can a porpoise be from the microphone and...

why does the waters of the unpolluted oceans and seas have their own different natural colour? is it jus a mere reflection of the sky??

Volume of the ocean?? G'day, Is anyone able to help me, in calculating the volume of the Earth's volume? *Please show all working* Thanks in adavnce! Kind Regards Simmon.