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      <title>ONDAS by </title>
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      <description>criado por tutu</description>
      <language>en-us</language>
      <pubDate>2022-06-04 16:14:42 UTC</pubDate>
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         <title>ONDAS</title>
         <author>mariafonseca2007</author>
         <link>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210964003</link>
         <description><![CDATA[<div>perturbações que se propagam pelo espaço sem transporte de matéria, apenas de energia. O elemento que provoca uma onda é denominado fonte, por exemplo, uma pedra lançada nas águas de um rio gerarão ondas circulares.</div>]]></description>
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         <pubDate>2022-06-04 16:15:18 UTC</pubDate>
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         <title>Amplitude: corresponde à altura da onda, marcada pela distância entre o ponto de equilíbrio (repouso) da onda até a crista. Note que a “crista” indica o ponto máximo da onda, enquanto o “vale”, representa a ponto mínimo.</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:27:02 UTC</pubDate>
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         <title>Comprimento de onda: Representado pela letra grega lambda (λ), é a distância entre dois vales ou duas cristas sucessivas.</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:33:25 UTC</pubDate>
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         <title>Velocidade: representado pela letra (v), a velocidade de uma onda depende do meio em que ela está se propagando. Assim, quando uma onda muda seu meio de propagação, a sua velocidade pode mudar.</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:35:01 UTC</pubDate>
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         <title>Frequência: representada pela letra (f), no sistema internacional a frequência é medida em hertz (Hz) e corresponde ao número de oscilações da onda em determinado intervalo de tempo. A frequência de uma onda não depende do meio de propagação, apenas da frequência da fonte que produziu a onda.</title>
         <author>mariafonseca2007</author>
         <link>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210973674</link>
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         <pubDate>2022-06-04 16:37:05 UTC</pubDate>
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         <title>Período: representado pela letra (T), o período corresponde ao tempo de um comprimento de onda. No sistema internacional, a unidade de medida do período é segundos (s).</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:38:48 UTC</pubDate>
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      <item>
         <title>entendendo mais...</title>
         <author>mariafonseca2007</author>
         <link>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210974727</link>
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         <pubDate>2022-06-04 16:39:33 UTC</pubDate>
         <guid>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210974727</guid>
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         <title>introdução a ondas</title>
         <author>mariafonseca2007</author>
         <link>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210975945</link>
         <description><![CDATA[]]></description>
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         <pubDate>2022-06-04 16:42:18 UTC</pubDate>
         <guid>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210975945</guid>
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         <title>equacao ondas </title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:43:05 UTC</pubDate>
         <guid>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210976288</guid>
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      <item>
         <title>reflexao e refracao</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:43:38 UTC</pubDate>
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         <title>difracao e interferencia</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:44:30 UTC</pubDate>
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      <item>
         <title>provinha</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:45:15 UTC</pubDate>
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      <item>
         <title></title>
         <author>mariafonseca2007</author>
         <link>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210977956</link>
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         <pubDate>2022-06-04 16:46:38 UTC</pubDate>
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         <title>Tipos de Ondas: Ondas Mecânicas: para que haja propagação, as ondas mecânicas necessitam de um meio material, por exemplo, as ondas sonoras e as ondas em uma corda. Ondas Eletromagnéticas: nesse caso, não é necessário que haja um meio material para que a onda se propague, por exemplo, as ondas de rádio e a luz.</title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:55:29 UTC</pubDate>
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         <title></title>
         <author>mariafonseca2007</author>
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         <pubDate>2022-06-04 16:57:11 UTC</pubDate>
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         <title>SITE PARA ESTUDO </title>
         <author>mariafonseca2007</author>
         <link>https://padlet.com/mariafonseca2007/7p0x8ghmnw4pv5kj/wish/2210983712</link>
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         <pubDate>2022-06-04 17:00:05 UTC</pubDate>
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