Submarine Definition and 80 Threads

Homework Statement a research submarine has a 20 cm diameter window 8 cm think. the manufacturer says the window van withstand forces up to 1x106N. What is the submarine's maximum safe depth? Homework Equations p = po + \rhogd The Attempt at a Solution p = F/A = 1X106 / 0.03 =...

This was just a "trick question?" the professor told us on friday. Its not homework but he said "think about it on the weekend" and I've been thinking about it! Here is my drawing: http://img502.imageshack.us/img502/4705/harborloopjpg.jpg...

1. Homework Statement A research submarine has a 40.0 -diameter window 8.30 thick. The manufacturer says the window can withstand forces up to 1.00×106 . What is the submarine's maximum safe depth? 2. Homework Equations p=Po + pgh3. The Attempt at a Solution p = 1.01x 10^5 + ? X9.8 x 8.3 i...

I am designing an experiment in which a plastic coke bottle will be made to float, subsurface, sink, and return to the water's surface by external manipulation. (depth of 1 meter) The way I want to do this is using three syringes and fish-tank tubing to control the volume(s) of air in the...

1. I am trying to analyse the hydrostatic pressures exerted on a submarine at depth Firstly If I model the submarine as being two hemispherical ends with a cylindrical section. Am I correct to model them seperately then combine the results at the end to calculate the deformation or is there a...

Homework Statement A submarine of mass 2.5 x 10^6 kg and initially at rest fires a torpedo of mass 260 kg. The torpedo has an initial speed of 100.4 m/s. What is the initial recoil speed of the submarine? Neglect the drag force of the water. Homework Equations m1v1=-m2v2 The Attempt...

Hi, I was looking at the following diagram and have some questions: Is the purpose of the pumps to transport liquid of one temperature to another section of the loop? Is it more efficient to use steam to turn turbine or to use water to turn a turbine? (Is hydroelectric more efficient...

Homework Statement A research submarine has a 40.0 cm-diameter window 8.50 cm thick. The manufacturer says the window can withstand forces up to 1.20×10^6 N. What is the submarine's maximum safe depth? The Attempt at a Solution The area which force will be exerted on is A= Pai * r^2 =...

Homework Statement William Smith built a small submarine capable of diving as deep as 30.0 m. The submarine's volume can be approximated by that of a cylinder with a length of 3.00 m and a cross-sectional area of 0.500 square meters. Suppose this submarine dives in a freshmwater river and...

[SOLVED] Doppler Effect Problem Homework Statement A submarine (sub 1) travels through water at a speed of 8.00 m/s, emitting a sonar wave at a frequency of 1400 Hz. The speed of sound in the water is 1533 m/s. A second submarine (sub 2) is located such that both submarines are traveling...

Homework Statement a miniature sub is lowered to a depth of 8.5 m in sea water of density 1030 kg/m^3. The interior of the sub is maintained at a pressure fo 1.00 atm. Find the net force that must be withstood by a 1.5 diameter hatch which leads to the insisde. Homework Equations F= PA...

Homework Statement A submarine is operating at 100 m below the surface of the ocean. If the air inside the submarine is maintained at a pressure of 1 atmosphere, what is the magnitude of the force that acts on the rectangular hatch 2.0 x 1.0 m on the deck of the submarine? Homework...

A replica of a Revolution era submarine cited for safty violations.

[b]1. A WWII sub sailing north spots a Japanese carrier directly above it sailing due east at 10 knots. If the submarine at the time of sighting the carrier is 5 miles away, has torpedoes that travel 40 knots/hr, it takes 3 mins to load and fire torpedo. • At what angle with respect to...

A scientist is making a precise measurement of g at a certain point in the Indian Ocean (on the equator) by timing the swing of a pendulum of accurately known construction. To provide a stable base, the measurements are conducted in a submerged submarine. It is observed that a slightly different...

Homework Statement A submarine on the ocean surface gets a sonar echo indicating an underwater object. The echo comes back at an angle of 20* above the horizontal and the echo took 2.32s to get back to the submarine. What is the object's depth? Homework Equations delta of theta =...

Submarine propulsion Regarding nuclear powered submarines, they produce electric energy through the use of a generator that is being powered by steam from a “boiler” –for simplicity- Would this energy be enough to power a submarine using magnetohydrodynamic water propulsion? Using...

Homework Statement Suppose a steel strut with cross-sectional area 7.00x10^-4 m2 and length 2.50 m is bolted between two rigid bulkheads in the engine room of a submarine. (a) Calculate the change in temperature of the strut if it absorbs an energy of 3.00x10^5 J. °C Homework Equations Q =...

Suppose with have two objects underwater: a scuba diver and a submarine that travels close to the speed of light. For the scuba diver is seems that the submarine is getting heavier and from the submarine it seems as if everything else is getting heavier. So which is it - will the submarine rise...

A submarine of mass 2.3 times 106 kg and initially at rest fires a torpedo of mass 260 kg. The torpedo has an initial speed of 100.9 m/s. What is the initial recoil speed of the submarine? Neglect the drag force of the water. My work: Pi=Pf Pi=0 Pf= Mtorpedo * Vtorpedo - Msub * Vsub...

Okay, I need some help yet again. Our teacher is giving us no hints on the "mystery problem" on our test tomorrow. "A boat sends a sonar down to find a submarine underwater. The boat estimates the velocity of sound under the water to be 1500 m/s. Howeer, they are wrong about that velocity...

Hey me china plates, want to come to a moriarty down the nuclear sub ? i will be your pillar and post, the first tiddley winks are on me, bring you trouble and strife and your bricks and mortars and plenty of bread and honey then we can all get tom and jerry, after the moriarty we can all...

Hi, I need to solve this problem but I have no idea where to start. I made a little drawing with all the informations I have but now I'm stuck. Here's the problem: A submarine uses sonar waves, to identify other ships, by directing a highly directional acoustic pulse at a target, and...

What kinds of engineers usually build submarine?

Which one is more technologically difficult to build, the latest stealth B-2 bomber or the latest version of Virgina class submarine?

A submarine of mass m is diving at a 45 degree angle which means that the submarine's propulsion system is generating constant thrust T in the direction of the given angle. Assume that the density of the submarine is d1 and the density of water is d2. Further, assume that there is no resistance...

I have to make a miniature submarine, no bigger than the average purse, that floats in a 30 gallon tank, then sinks, comes back to the suface, sinks once more, and then comes back to the surface again. I can not use any chemicals or anything that will change the water colors or any gas. I am...

I have this fluids problem I've been working on for a while, but I can't seem to get the correct answer. The problem is: A circular window with radius 25 cm in a submarine can withstand a maximum force of 1.23E6 N. If the interior of the submarine is maintained at a pressure of 1 atm...

Thought you might want a quick blast on this submarine shoot-em-up http://www.netaddition.com/game/ I'm still fixing the high score table at the moment.

Ok, 'A circular window with a 30 cm diameter in a submarine can withstand a maximum force of 5.2x10^5N. What is the maximum depth (in m) in a lake to which the submarine can go without damaging the window round off to the nearest whole number?' I tried P=F/A=pAhg/A, so I converted 30 cm to...