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	<title>Comments on: Energia Cinética</title>
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	<link>http://www.amigonerd.com/energia-cinetica/</link>
	<description>Exercícios para o Vestibular</description>
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	<item>
		<title>By: tulio</title>
		<link>http://www.amigonerd.com/energia-cinetica/comment-page-1/#comment-54061</link>
		<dc:creator>tulio</dc:creator>
		<pubDate>Sun, 18 Dec 2011 21:50:37 +0000</pubDate>
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		<description>g=10m/s
m=3KG
h=6m
v=m.g
v=6.10
v=60
&#160;
Ec=(m.v^2)/2 &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;
Ec=(3.60^2)/2
Ec=(3.3600)/2
Ec=10800/2
Ec=5400J
acho ke &#233; isso nao tenho certeza(se eu estiver errado por favor me corrijam)
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		<content:encoded><![CDATA[<p>g=10m/s<br />
m=3KG<br />
h=6m<br />
v=m.g<br />
v=6.10<br />
v=60<br />
&nbsp;<br />
Ec=(m.v^2)/2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br />
Ec=(3.60^2)/2<br />
Ec=(3.3600)/2<br />
Ec=10800/2<br />
Ec=5400J<br />
acho ke &eacute; isso nao tenho certeza(se eu estiver errado por favor me corrijam)<br />
&nbsp;</p>
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		<title>By: Priscilla</title>
		<link>http://www.amigonerd.com/energia-cinetica/comment-page-1/#comment-53579</link>
		<dc:creator>Priscilla</dc:creator>
		<pubDate>Mon, 12 Dec 2011 10:11:27 +0000</pubDate>
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		<description>Um bloco de madeira de 100kg cai de um andar de um ed&#237;ficio em construa&#231;ao situado a 18 metros do solo. Gerando 45 cal. Toda a energia potencial gravitacional a convertida e em energia t&#233;rmica. Sabendo que o calor espec&#237;fico da madeira &#233; 0,45 kcal/(kgC). Calcule a varia&#231;ao de calor sofrida pelo bloco.</description>
		<content:encoded><![CDATA[<p>Um bloco de madeira de 100kg cai de um andar de um ed&iacute;ficio em construa&ccedil;ao situado a 18 metros do solo. Gerando 45 cal. Toda a energia potencial gravitacional a convertida e em energia t&eacute;rmica. Sabendo que o calor espec&iacute;fico da madeira &eacute; 0,45 kcal/(kgC). Calcule a varia&ccedil;ao de calor sofrida pelo bloco.</p>
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	<item>
		<title>By: valdenice</title>
		<link>http://www.amigonerd.com/energia-cinetica/comment-page-1/#comment-53089</link>
		<dc:creator>valdenice</dc:creator>
		<pubDate>Tue, 06 Dec 2011 20:37:28 +0000</pubDate>
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		<description>Ep=m.g.h&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Ep=Ec
Ep=3.10.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; 180=3.2v/2
Ep=180J&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; 2v= 60/3
&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;2v=20
&#160;
&#160;
&#160;</description>
		<content:encoded><![CDATA[<p>Ep=m.g.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ep=Ec<br />
Ep=3.10.6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 180=3.2v/2<br />
Ep=180J&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2v= 60/3<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2v=20<br />
&nbsp;<br />
&nbsp;<br />
&nbsp;</p>
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