Physics, 28.11.2019 13:31 lcdavis16

Rank the pressure from highest to lowest (a) bottom of a 20-cm tall container of salt water, (b) bottom of a 20 cm-tall container of fresh water, and (c) bottom of a 5-cm tall container of mercury

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Answer from: shongmadi77

The answer is C, A, B in that order.

Pressure = Density * gravity * height.

Let us look at these three substances and assume gravity is 9.8 m/s squared.

The Salt water has a density of 1029kg/m3, height of 0.2 meters.

Pressure of salt water will be 1029*9.8*0,2 = 2,016 p

Fresh water has a density of 1000kg/m3

Pressure of salt water will be 1000*9.8*0.2 = 1,960 pa

Mercury has density of 13,534kg/m3

Pressure of mercury will be 13534*9.8*0.05 = 6,631 pa

So mercury exerts the highest pressure even at only 5cm height.

Answer from: Quest

e) none of the above answers are correct

Answer from: Quest

Acetic acid /əˈsiːtɪk/, systematically named ethanoic acid /ˌɛθəˈnoʊɪk/, is a colourless liquid organic compound with the chemical formula ch3cooh (also written as ch3co2h or c2h4o2). when undiluted, it is sometimes called glacial acetic acid. vinegar is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water. acetic acid has a distinctive sour taste and pungent smell. in addition to household vinegar, it is mainly produced as a precursor to polyvinyl acetate and cellulose acetate. it is classified as a weak acid since it only partially dissociates in solution, but concentrated acetic acid is corrosive and can attack the skin.acetic acidnamespreferred iupac nameacetic acidsystematic iupac nameethanoic acidother namesvinegar (when dilute); hydrogen acetate; methanecarboxylic acid[1][2]identifierscas number64-19-7 3d model (jsmol)interactive image3dmetb00009 reference506007chebichebi: 15366 chemblchembl539 chemspider171 drugbankdb03166 echa infocard100.000.528ec number200-580-7e numbere260 (preservatives)gmelin reference1380iuphar/bps1058keggd00010 meshacetic+acidpubchem cid176rtecs numberaf1225000uniiq40q9n063p un number2789inchiinchi=1s/c2h4o2/c1-2(3)4/h1h3,(h,3,4) key: qtbsbxvteameqo-uhfffaoysa-n smilescc(o)=o

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