Physics, 30.10.2020 16:50 isabellawest2

The distance between pitcher and catcher on a baseball field is 18.4 m. If a pitcher releases a ball from a height of 1.5 m and the catcher catches the ball right at ground level, how fast did the pitcher throw the ball?

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Answer from: Adot23x

33.26 m/s

Explanation:

The initial velocity of the ball can be determined by;

R = v $\sqrt{\frac{2H}{g} }$

Where R is the range (distance between pitcher and catcher), H is the height covered, v is the initial velocity and g is the acceleration due gravity (9.8 m/ $s^{2}$ ).

So that;

18.4 = v $\sqrt{\frac{2*1.5}{9.8} }$

= v $\sqrt{\frac{3}{9.8} }$

= v $\sqrt{0.3061}$

= 0.5533v

⇒ v = $\frac{18.4}{0.5533}$

= 33.2550

The initial velocity of the ball is 33.26 m/s.This is the velocity with which the pitcher threw the ball.

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

Wavelength divides in half and speed stays the same.

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The distance between pitcher and catcher on a baseball field is 18.4 m. If a pitcher releases a ball...

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