Physics, 24.06.2019 11:00 seonna

Heidi and heather take a 30 minute walk eastward along a straight road to a store 2.0 km away. what is their average velocity in m/s?

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Answer from: MariaIZweird9631

Average velocity =

(distance and direction of their change in location)

divided by

(time for the change) .

Distance and direction of their change in location = 2.0 km east (their "displacement")

Time for the change = 30 minutes

Average velocity = (2.0 km east) / (30 minutes)

Average velocity = (2/30) (km east/minute)

Average velocity = 0.067 km/min east

Average velocity = 4.0 km/hr east

Just to be difficult, the question specifies that the answer must be given in units of m/s. Is no problema for nosotros:

Average velocity = (4.0 km-east/hour) x (1,000 m/km) x (1 hour/3600 sec)

Average velocity = (4 x 1,000 / 3,600) (km-east-meter-hr / hr-km-sec)

Average velocity = 1.111... m/s East

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

Answer from: Quest

Because the dept in the ocean

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Heidi and heather take a 30 minute walk eastward along a straight road to a store 2.0 km away. what...

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