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      <title>LUCRUL.PUTEREA MECANICĂ.ENERGIA. by Tatiana C.</title>
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      <language>en-us</language>
      <pubDate>2018-04-03 20:15:42 UTC</pubDate>
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         <title></title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248297485</link>
         <description><![CDATA[<div>Lucrul mecanic este efectuat de o forţă care acţionează asupra unui corp şi îşi deplasează punctul de aplicaţie pe direcţia şi în sensul ei.</div>]]></description>
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         <pubDate>2018-04-03 20:19:34 UTC</pubDate>
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         <title></title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248298755</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-04-03 20:24:22 UTC</pubDate>
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         <title>Formula de calcul a lucrului mecanic:</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248298968</link>
         <description><![CDATA[<div><strong>L = F * d</strong></div>]]></description>
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         <pubDate>2018-04-03 20:25:24 UTC</pubDate>
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         <title>Cazuri particulare:</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248299487</link>
         <description><![CDATA[<div>Lucrul mecanic efectuat de o <a href="https://ro.wikipedia.org/wiki/For%C8%9B%C4%83_conservativ%C4%83">forță conservativă</a> nu depinde de drumul efectuat de punctul material supus acțiunii acelei forțe, ci numai de pozițiile extreme ale traiectoriei. Exemple de forțe conservative: <a href="https://ro.wikipedia.org/wiki/Greutate">greutatea</a>, <a href="https://ro.wikipedia.org/wiki/For%C8%9Ba_elastic%C4%83">forța elastică</a>, <a href="https://ro.wikipedia.org/wiki/Legea_lui_Coulomb">forța electrostatică</a>.</div>]]></description>
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         <pubDate>2018-04-03 20:27:28 UTC</pubDate>
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         <title></title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248299658</link>
         <description><![CDATA[<div>Puterea mecanică arată capacitatea unei forţe de a efectua lucru mecanic, se notează cu P.</div>]]></description>
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         <pubDate>2018-04-03 20:28:04 UTC</pubDate>
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      <item>
         <title>Formula de calcul a puterii:</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248300057</link>
         <description><![CDATA[<div><strong>P = L / T</strong></div>]]></description>
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         <pubDate>2018-04-03 20:29:43 UTC</pubDate>
         <guid>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248300057</guid>
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      <item>
         <title>Energia cinetică.</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248300584</link>
         <description><![CDATA[<div>Energia cinetică este o mărime scalară egală cu semiprodusul dintre masa punctului material şi pătratul vitezei lui.</div>]]></description>
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         <pubDate>2018-04-03 20:31:30 UTC</pubDate>
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      <item>
         <title>Formula de calcul a energiei cinetice:</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248301030</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-04-03 20:33:23 UTC</pubDate>
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      <item>
         <title>James Prescott Joule (1818-1889), fizician englez</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248303152</link>
         <description><![CDATA[<div>A contribuit la fundamentarea legii conservării şi transformării energiei, a cercetat transformarea lucrului mecanic în căldură şi invers, a determinat experimental echivalentul mecanic al căldurii (1843).</div>]]></description>
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         <pubDate>2018-04-03 20:43:06 UTC</pubDate>
         <guid>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248303152</guid>
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      <item>
         <title>Energia potenţială:</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248304420</link>
         <description><![CDATA[<div><strong>Energia potențială</strong> este <a href="https://ro.wikipedia.org/wiki/Energie">energia</a> unui <a href="https://ro.wikipedia.org/wiki/Sistem_fizic">sistem fizic</a>, dependentă numai de poziția sau configurația diferitelor părți ale sistemului.</div>]]></description>
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         <pubDate>2018-04-03 20:48:29 UTC</pubDate>
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      <item>
         <title></title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248306820</link>
         <description><![CDATA[<div>-În sistemul internaţional de unităţi, puterea mecanică se măsoară în waţi (W).<br>-O altă unitate de măsură a puterii mecanice este calul - putere, un cal - putere fiind egal cu 736 W.</div>]]></description>
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         <pubDate>2018-04-03 20:57:26 UTC</pubDate>
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         <title></title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248307381</link>
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         <pubDate>2018-04-03 20:59:13 UTC</pubDate>
         <guid>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248307381</guid>
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      <item>
         <title>Lucrul mecanic al unei forţe constante:</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248308643</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-04-03 21:06:19 UTC</pubDate>
         <guid>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248308643</guid>
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      <item>
         <title>Energia mecanică</title>
         <author>theotatiiana</author>
         <link>https://padlet.com/theotatiiana/xtok2zgk8hzd/wish/248309069</link>
         <description><![CDATA[<div>Mărimea fizică egală cu suma energiei cintice şi celei  potenţiale a sistemului la momentul dat se numeşte energie mecanică a acestui sistem.</div>]]></description>
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         <pubDate>2018-04-03 21:08:31 UTC</pubDate>
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