Home
Class 9
PHYSICS
The titanic was found in 1985 lying on t...

The titanic was found in 1985 lying on the bottom of the north atlantic at a depth of 2.5 miles. What is the pressure at this depth? (Given 1 mile`=1609m1)

Text Solution

Verified by Experts

`P=P_0+rhogh=(1.01xx10^5Pa)+(1025(kg)/(m^3))(9.81(m)/(s^2))(2.5miles)((1690m)/(1"mile"))`
`=4.1xx10^7Pa=400atm` ("as density of sea water " `rho=1025(kg)/(m^3)`)
Promotional Banner

Topper's Solved these Questions

  • FLOTATION

    PRADEEP|Exercise Oral Testing|21 Videos

  • FLOTATION

    PRADEEP|Exercise Quiz Testing:Between Two Groups|9 Videos

  • FLOTATION

    PRADEEP|Exercise PROBLEMS FOR PRACTICE|18 Videos

  • FORCES AND LAWS OF MOTION

    PRADEEP|Exercise MOCK TEST|36 Videos

Similar Questions

Explore conceptually related problems

The top surface of an incompressible liquid is open to the atmosphere. The pressure at a depth h_(1) below the surface is p_(1) . What is the pressure p_(2) at depth h_(2) = 2h_(1) compare with p_(1) ?

At his usual rowing rate, Rahul can travel 12 miles downstream in a certain river in 6 hours less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his 24-mile round trip, the downstream 12 miles would then take only one hour less than the upstream 12 miles. What is the speed of the current in miles per hours? 1 1/3 b. 1 2/3 c. 2 1/3 d. 2 2/3

A cylindrical tank of radius 5.6 m and depth of 'h' m is built by digging out earth. The sand taken out is spread all around the tank to form a circular embankment to a width of 7m. What is the depth of the tank if the height of the embankment is 1.97m ?

A cistern 6 m long and 4 m wide, contains water up to a depth of 1m 25 cm. The total area of the wet surface is

An air bubble starts rising from the bottom of a lake and its radius is doubled on reaching the surface. If the temperature is costant the depth of the lake is. ( 1 atmospheric pressure = 10m height of water column)

A 1.00 m tall container is filled to the brim , partway with mercury and the rest of the way with water . The container is open to the atmosphere . What must be the depth of the mercury so that the absolute pressure on the bottom of the container is twice the atmospheric pressure ?

An air bubble starts rising from the bottom of a lake. Its diameter is 3.6 mm at the bottom and 4 mm at the surface. The depth of the lake is 250 cm and the temperature at the surface is 40^@ C . What is the temperature at the bottom of the lake? Given atmospheric pressure = 76 cm of Hg and g = 980 cm//s^2 .

A tank is filled with water to a height of 15.5 cm . The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 8.5 cm . If water is replaced by a liquid of refractive index 1.94 up to the same height by what distance would the microscope have to be moved to focus on the needle again ?

A tank filled with a liquid to a height of 12.5 cm. The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 10 cm. If water is replaced by water of refractive index 1.66 up to the same height, by what distance (in mm) would the microscope have to be moved to focus on the needle again?

If pressure at the half depth of a lake is equal to 3/4 times the pressure at its bottom, then find the depth of the lake. [Take g = 10 m/ s^(2) ]

PRADEEP-FLOTATION-ASSESSMENT THROUGH PAPER-PEN TEST
  1. Why is the pressure on the ground more when a man is walking than when...

    Text Solution

    |

  2. Find the pressuer exerted on the skin of a balloon with a force of 2.1...

    Text Solution

    |

  3. A cubical box 20 cm on a side is completely immersed in a fluid. At th...

    Text Solution

    |

  4. The titanic was found in 1985 lying on the bottom of the north atlanti...

    Text Solution

    |

  5. (a) Gallinule (an aquatic bird with exceptionally long toes that are s...

    Text Solution

    |

  6. A body floats in a liquid if the buoyant force is

    Text Solution

    |

  7. Loss of wuight of a body immersed in a liquid is:

    Text Solution

    |

  8. Which of the following gases is the densest of all?

    Text Solution

    |

  9. Buoyant force acting on a body immersed in a fluid depends on:

    Text Solution

    |

  10. A boat having a length of 3 m and breadth of 2 m is floating on a lake...

    Text Solution

    |

  11. The reading of a spring balance when a block is suspended from it in a...

    Text Solution

    |

  12. What fraction of an iceberg lies beneath the surface of the sea? Densi...

    Text Solution

    |

  13. Air is a fluid and our bodies displace air. And so a buoyant force is ...

    Text Solution

    |

  14. Two blocks of equal bolume, one of iron and one of aluminium, are drop...

    Text Solution

    |

  15. What is cause of buoyant force?

    Text Solution

    |

  16. An object is immersed in different liquids. Does same buoyant force ac...

    Text Solution

    |

  17. An ice cube floats in a glass of water. As the ice melts, how does the...

    Text Solution

    |

  18. If the density of an object is exactly equal to the density of a fluid...

    Text Solution

    |

  19. A cube 8.5 cm on each side has a mass of 0.65 kg. Will the cube float ...

    Text Solution

    |

  20. State Archimedes's Principle. Describe an experiment for its verificat...

    Text Solution

    |