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      <title>Valovi by Kristina Cirimotić</title>
      <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f</link>
      <description>U ovom radu ćemo naućiti što su to valovi gdje se sve nalaze.</description>
      <language>en-us</language>
      <pubDate>2024-04-15 18:51:35 UTC</pubDate>
      <lastBuildDate>2024-04-16 12:17:12 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>Valovi</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955542392</link>
         <description><![CDATA[<p><strong>Valovi</strong> su  širenje poremećaja kojim se prenosi energija  kroz neko sredstvo(medij), a da se sredstvo kao cjelina ne pomiče.</p>]]></description>
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         <pubDate>2024-04-15 18:54:09 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955542392</guid>
      </item>
      <item>
         <title>Imamo više vrsta valova a to su:</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955543431</link>
         <description><![CDATA[]]></description>
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         <pubDate>2024-04-15 18:55:06 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955543431</guid>
      </item>
      <item>
         <title>Longitudinalni </title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955550433</link>
         <description><![CDATA[<p><strong>Longitudinalni</strong>– čestice titraju u smjeru širenja vala. Najvažniji primjer longitudinalnih valova su valovi zvuka u zraku. </p><p>U tekućinama i plinovima samo se rasprostiru longitudinalni valovi.</p>]]></description>
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         <pubDate>2024-04-15 19:01:12 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955550433</guid>
      </item>
      <item>
         <title>Transvenzivni val</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955556002</link>
         <description><![CDATA[<p><strong>Transverzalni </strong>- čestice titraju poprečno na smjer širenja. U čvrstim tijelima mogu se rasprostirati i transverzalni i longitudinalni valovi-</p>]]></description>
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         <pubDate>2024-04-15 19:06:00 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955556002</guid>
      </item>
      <item>
         <title>Kružni val</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955561973</link>
         <description><![CDATA[<p><strong>Kružni val- </strong>na vodi sastoji se od koncentričnih kružnica koje se šire. </p><p>Kada bacimo kamenčić u vodu, nastane kružni val koji se širi jednako u svim smjerovima.</p>]]></description>
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         <pubDate>2024-04-15 19:11:18 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955561973</guid>
      </item>
      <item>
         <title>Ravni val</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955565008</link>
         <description><![CDATA[<p><strong>Ravni val- </strong>je val koji se prvocrtno širi elastičnim sredstvom, njegova valna fronta ima oblik ravnine, a nastaje istovjetnom pobudom na titranje točaka na ravnini.</p>]]></description>
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         <pubDate>2024-04-15 19:14:27 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955565008</guid>
      </item>
      <item>
         <title>Elektromagnetski val</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955568898</link>
         <description><![CDATA[<p><strong>Elektromagnetski valovi</strong> -(na primjer svjetlost) prenose se titranjem električnoga i magnetskoga polja u propusnom mediju (može biti i vakuum).</p>]]></description>
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         <pubDate>2024-04-15 19:18:14 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955568898</guid>
      </item>
      <item>
         <title>Mehanički val</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955572503</link>
         <description><![CDATA[<p><strong>Mehanički valovi-</strong> (na primjer zvuk) šire se u elastičnom mediju (na primjer zrak, voda) titranjem čestica povezanih elastičnim silama oko ravnotežnoga položaja; energija valova to je veća što je veća amplituda titranja, a izvor valova svako je tijelo koje titra (na primjer izvor zvuka može biti žica glazbenog instrumenta).</p>]]></description>
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         <pubDate>2024-04-15 19:21:43 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955572503</guid>
      </item>
      <item>
         <title>Svojstva valova:</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955574731</link>
         <description><![CDATA[]]></description>
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         <pubDate>2024-04-15 19:23:57 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955574731</guid>
      </item>
      <item>
         <title>Opisuju se pomoću:</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955577471</link>
         <description><![CDATA[<p>Valovi se opisuju s pomoću:</p><ul><li><p>valne duljine <em>λ</em>, udaljenosti između dvaju susjednih brjegova ili dolova sinusoidalnoga vala;</p></li><li><p>perioda vala <em>T</em>, vremena koje protekne dok se val pomakne za jednu valnu duljinu;</p></li><li><p>valnoga broja <em>k</em>, veličine recipročne valnoj duljini, i</p></li><li><p>frekvencije <em>f</em>, veličine recipročne periodu.</p></li></ul>]]></description>
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         <pubDate>2024-04-15 19:26:09 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955577471</guid>
      </item>
      <item>
         <title>Formule:</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955578695</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2024-04-15 19:27:29 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955578695</guid>
      </item>
      <item>
         <title>Formula za frekvenciju vala i period titranja</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955582081</link>
         <description><![CDATA[]]></description>
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         <pubDate>2024-04-15 19:30:51 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955582081</guid>
      </item>
      <item>
         <title>Formula za brzinu širenja vala</title>
         <author>kristinacirimotic</author>
         <link>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955589350</link>
         <description><![CDATA[]]></description>
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         <pubDate>2024-04-15 19:39:10 UTC</pubDate>
         <guid>https://padlet.com/kristinacirimotic/p58btk3yaird2p0f/wish/2955589350</guid>
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