Monday, October 17, 2011

Will ships float lower or higher in tropical waters?

You have not mentioned in your question compared to what
will the ships float lower or higher. I assume it is non-tropical
water.


Tropical water is water that lies in the region
between the tropics. The temperature of the water here is higher compared to
non-tropical waters and does not fall below 25 C.


As the
temperature of water increases, the molecules move further apart and its density
decreases.


A ship floats in water when the buoyancy of the
water is equal to the weight of the ship. In case this cannot happen if the mass of the
ship is too high or its structure is such that it is not able to displace a sufficient
quantity of water, the ship will not float.


When a ship
moves from non-tropical waters to tropical waters as the density of water decreases a
larger volume of water has to be displaced for the ship to remain afloat. This would
mean that a larger structure of the ship will be submerged in the water and it will
float lower.

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