Au-tube is filled with water until the liquid level is 28cm above the bottom of the tube. an oil of specific gravity 0.78 is now poured into one arm of the u-tube until the level of the water in the other arm of the tube is 34 cm above the bottom of the tube. find the level of the oil-water and oil-air interfaces in the other arm of the tube.

Answer

given,

height of water = 28 cm

specific gravity of the oil = 0.78

new height of the water level = 34 cm

height of water = ?

increase in height = 34 - 28 = 6 cm

water oil interface is at = 28 - 6 = 22 cm

so, now, 12 cm of weight of water is to be displaced by oil

height of the equivalent oil

      = 12 / 0.78

      = 15.38 cm

height of the oil from the bottom is equal to

     = 22 + 15.38

     = 37.38 cm

multiply 2kg by latent heat of vap

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.