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 <question type="category"><category><text>4t ESO/4.04 EQUACIONS/4.04.1 Equació 1r grau/4.04.1.7 Aplicacions EG1</text></category></question>
 
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 <question type="shortanswerwiris">
    <name>
      <text>4.04.1.7.41Q P=F/s Calcular s</text>
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<td><img 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<td style="text-align: justify;">
<p><span style="color: #000080; font-size: small;"><strong>Un got de base circular que conté #m g d'aigua exerceix una pressió de #p Pa sobre la taula. </strong></span></p>
<p><span style="font-size: small; color: #000080;" data-mce-mark="1"><strong>Quin és el radi de la base del got si en aquest lloc, l'acceleració de la gravetat és de 9,8 m/s<sup>2</sup>?</strong></span></p>
<p><span style="font-size: small;"><span style="color: #ff6600;"><strong><span style="font-size: small;">Format:</span></strong></span> en cm, arrodonit als dècims</span></p>
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<p><br /><span style="color: #ff6600;" data-mce-mark="1"><strong><br /></strong></span></p>
<p> </p>]]></text>
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      <text><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>s</mi><mi>o</mi><mi>l</mi><mspace linebreak="newline"/></math>]]></text>
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    <hint format="html">
      <text><![CDATA[<p><span style="color: #003300;" data-mce-mark="1"><strong>Cal aïllar s de l'expressió p=F/s i per tant «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»s«/mi»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»=«/mo»«mfrac mathcolor=¨#003300¨»«mi mathvariant=¨bold¨»F«/mi»«mi mathvariant=¨bold¨»p«/mi»«/mfrac»«/mstyle»«/math»</strong></span></p>
<p> </p>
<p><span style="color: #003300;"><strong>Recorda que per calcular F que és el pes de l'aigua, cal multiplicar la seva  massa (en kg) per l'acceleració de la gravetat: F = m·9,8 </strong></span></p>]]></text>
    </hint>
    <hint format="html">
      <text><![CDATA[<p><span style="color: #003300;"><strong>El pes de l'aigua és F = #m1 ·9,8 = #F1</strong></span></p>
<p><span style="color: #003300;"><strong>La superfície de la base del got és doncs: </strong></span><strong style="font-size: 13.6000003814697px; line-height: 17.3090915679932px; color: #003300;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mrow»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»s«/mi»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»=«/mo»«mfrac mathcolor=¨#003300¨»«mrow»«mo mathvariant=¨bold¨»#«/mo»«mi mathvariant=¨bold¨»F«/mi»«mn mathvariant=¨bold¨»1«/mn»«/mrow»«mrow»«mo mathvariant=¨bold¨»#«/mo»«mi mathvariant=¨bold¨»p«/mi»«/mrow»«/mfrac»«/mrow»«/mstyle»«/math»</strong></p>]]></text>
    </hint>
    <hint format="html">
      <text><![CDATA[<p><span style="color: #003300;"><strong>I com que s = π·r<sup>2</sup>, es pot calcular r: «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mrow»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»r«/mi»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»=«/mo»«msqrt mathcolor=¨#003300¨»«mfrac»«mi mathvariant=¨bold¨»s«/mi»«mi mathvariant=¨bold¨»§#960;«/mi»«/mfrac»«/msqrt»«/mrow»«/mstyle»«/math»</strong></span></p>]]></text>
    </hint>
  </question>
 </quiz>
