if separate water lines were to be painted or etched on a ship's sides, which line would be drawn higher, that of the freshwater or that of the salt water? Why?
2007-01-05 21:58:04 · 14 answers · asked by i-need-ur-help!! 1 in Science & Mathematics ➔ Earth Sciences & Geology
Freshwater. Because the density of saltwater is greater than the density of fresh water, objects in seawater float higher than they do in freshwater.
2007-01-05 22:00:57 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Come now, salt water is denser than fresh water. Therefore the volume of water needed to be displaced to equal the weight of the ship is greater with fresh water than salt water.
Hence the salt eater line will be lower on the hull and the fresh water line will be higher (more water displaced).
2007-01-06 06:07:54 · answer #2 · answered by John C 2 · 0⤊ 0⤋
The weight of the ship determines it's draft and freeboard (the amount of the hull below and above the water, respectively).
If salt water is denser because of impurities, there may be a slight difference, and the ship will ride a little bit higher (there will be more freeboard).
However, I believe ships are designed for specific bouyancy, and when blue-water vessels are tested in fresh water, as they have been in north Idaho lakes in the past, a little less ballast or equipment would be added to bring the ships to their desired draft.
2007-01-06 06:05:18 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Fresh water. Salt water allows things to float easily so fresh water line would be drawn higher. e.g. Black sea is so salty that people can float on it without using floats.
2007-01-06 06:07:42 · answer #4 · answered by Buckytooth 2 · 0⤊ 0⤋
The system you refer to is called 'The Plimsoll Line' The highest line is for 'Tropical Fresh Water', and the lowest would be for 'Winter North Atlantic' This is because salt content affects the capacity for things to float on the water. (The Dead Sea is a good example) This system is to prevent overloading.
2007-01-06 06:06:26 · answer #5 · answered by Alan A 3 · 2⤊ 0⤋
Saltwater is more dence than fresh. Therefore the boat will float higher in it so the fresh water line should be drawn higher
2007-01-06 06:04:40 · answer #6 · answered by himself202 1 · 0⤊ 0⤋
fresh water line will be drawn higher cos it has lower density than sea water and thus the ship will sit lower
2007-01-06 06:08:36 · answer #7 · answered by onukpa 3 · 0⤊ 0⤋
That for fresh water.The ship would sink deeper in fresh water to reach buoyancy level. Salt water would need less displacement to provide the same buoyancy to the ship.
2007-01-06 06:05:00 · answer #8 · answered by Anonymous · 0⤊ 0⤋
fresh water.
reason: fresh water has a lower density, so objects tend to sink more. but in sea water, high density keeps the body a little higher.
so you can float easily.
when the ship goes in fresh water, it sinks further than that in sea water.
hence, water line would be higher
2007-01-06 06:04:24 · answer #9 · answered by new_einstein 2 · 0⤊ 0⤋
fresh, because salt water is denser, cuz of all of the salt, the water is dense, making the ship more bouyant on it than fresh, which is just plain water.
im new to this, and im young. so if im wrong, it wouldn't surprise me!
OhEmGee! i was right! a lot of people put that answer! im only a young teen, and i got it, im so happy!
2007-01-06 07:05:15 · answer #10 · answered by dreamer_of_the_sea 1 · 0⤊ 0⤋