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      <title>Roller Coaster Physics  by </title>
      <link>https://padlet.com/juliannab13131/Juliannabutterfield1</link>
      <description>The Science Behind Roller Coasters</description>
      <language>en-us</language>
      <pubDate>2014-04-10 02:33:00 UTC</pubDate>
      <lastBuildDate>2026-03-02 16:25:36 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
      <image>
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      <item>
         <title>Friction</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25709078</link>
         <description><![CDATA[<p>Friction is a force that resist the motion of fluid layers, solid surfaces and material elements sliding or rubbing against each other.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-10 02:42:54 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25709078</guid>
      </item>
      <item>
         <title>Friction</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25709318</link>
         <description><![CDATA[<p>Friction relates to roller coasters because brakes stop and create static&nbsp;between the tracks and wheels of the roller coaster.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-10 02:47:54 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25709318</guid>
      </item>
      <item>
         <title>Potential Energy</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813666</link>
         <description><![CDATA[<p>PE = mass x g x height</p><p>Shorten</p><p>PE = m h x (9.8 m/s/s)</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 03:46:41 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813666</guid>
      </item>
      <item>
         <title>Kinetic Energy</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813889</link>
         <description><![CDATA[<p>KE = 1/2 x mass x velocity^2</p><p>Shorten</p><p>KE = 1/2mv^2</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 03:56:24 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813889</guid>
      </item>
      <item>
         <title>What is PE &amp;amp; KE?</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813944</link>
         <description><![CDATA[<p>PE stands for potential energy. Potential energy is stored energy possessed by an object. When an object is at&nbsp;rest, it has potential energy. when object is in motion it doesn't just stop have energy, it continues with a different type of energy. this different type of energy is called kinetic energy, KE.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 03:59:14 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813944</guid>
      </item>
      <item>
         <title>Energy&#39;s Unit</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813983</link>
         <description><![CDATA[<p>The unit for energy is a joule. </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 04:01:48 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25813983</guid>
      </item>
      <item>
         <title>PE &amp;amp; KE on Roller Coaster</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814191</link>
         <description><![CDATA[<p>Potential energy on a roller coaster is greatest at the top of a hill and kinetic energy is greatest at the bottom of a hill. You can see the changes in energy on a roller coaster, in my pictures below.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 04:10:12 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814191</guid>
      </item>
      <item>
         <title>History of Roller Coaster&amp;nbsp;</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814231</link>
         <description><![CDATA[<p>The history of roller coasters starts when the first roller coaster was built in Russian mt.&nbsp;One roller coaster&nbsp;had a slide that reached 50 to70 feet tall and had 50 degree drops. This was called Russian Mountains and&nbsp;some countries still call it that. although the phrase roller coaster originated in Paris, and the stuck when inventor ended wheels. In 1959, Disneyland introduced a new design in roller coasters with their new ride, the Matterhorn Bobsleds.&nbsp;This desing to use&nbsp;a steel track</p>&nbsp;]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 04:11:51 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814231</guid>
      </item>
      <item>
         <title>Amazing Roller Coaster Statics </title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814265</link>
         <description><![CDATA[<p>-Tallest Drop: 418 ft. Kingda Ka&nbsp; </p><p>-Fastest: 149.1 mph&nbsp;Formula Rossa</p><p>-Longest: 8,133.2 ft. Steel Dragon</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 04:13:45 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814265</guid>
      </item>
      <item>
         <title>Hammerhead Turn</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814296</link>
         <description><![CDATA[]]></description>
         <enclosure url="http://img2.wikia.nocookie.net/__cb20120624000005/aircoasteruniversity/images/thumb/b/b4/Nitro_Hammerhead.jpg/180px-Nitro_Hammerhead.jpg" />
         <pubDate>2014-04-11 04:16:09 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814296</guid>
      </item>
      <item>
         <title>Cobra Roll</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814307</link>
         <description><![CDATA[]]></description>
         <enclosure url="http://img2.wikia.nocookie.net/__cb20121023203730/coasterpedia/images/thumb/3/3c/Cobra_Roll.jpg/240px-Cobra_Roll.jpg" />
         <pubDate>2014-04-11 04:16:59 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814307</guid>
      </item>
      <item>
         <title>The BIG Question</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814357</link>
         <description><![CDATA[<p>Roller coasters build up potential energy as they start the beginning of the ride.&nbsp; The potential energy and gravity work together once the coaster reaches the top of the hill. Once the roller coaster starts to go down the hill, the potential energy is released&nbsp;to&nbsp;make&nbsp;kinetic energy. This energy allows the coaster to fly down the hill in meanwhile gravity continues to pull the roller coaster car&nbsp;down the track. Newton's third law applies to roller coasters by the car pushes on gravity, and gravity pulls on the car. Once the coaster has been pushed forward at great speeds, it will continue to stay in motion, even if it is climbing up a small hill and working against gravity.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 04:19:26 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25814357</guid>
      </item>
      <item>
         <title>Drawing</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25857828</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-11 16:02:39 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25857828</guid>
      </item>
      <item>
         <title>Middle</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25857936</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 16:03:32 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25857936</guid>
      </item>
      <item>
         <title>End</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25857980</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 16:03:45 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25857980</guid>
      </item>
      <item>
         <title>Full</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25860721</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-11 16:28:10 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25860721</guid>
      </item>
      <item>
         <title>Our Roller Coaster in Motion</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25860744</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-11 16:28:22 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25860744</guid>
      </item>
      <item>
         <title></title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25921358</link>
         <description><![CDATA[]]></description>
         <enclosure url="http://padletup.imgix.net/20130319/0bbedd074ec880a1e4027780baaa58c4.jpg?rotate=exif" />
         <pubDate>2014-04-13 23:46:13 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25921358</guid>
      </item>
      <item>
         <title></title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25921390</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-13 23:47:33 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25921390</guid>
      </item>
      <item>
         <title>Beginning </title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922107</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 00:06:03 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922107</guid>
      </item>
      <item>
         <title>Roller Coaster Elements </title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922475</link>
         <description><![CDATA[<p>These elements&nbsp;are called "thrill elements" because they add the thrill to the ride. There are loops, turn and twist that are all the same these are a few of my favorites.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 00:14:11 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922475</guid>
      </item>
      <item>
         <title>Corkscrew </title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922782</link>
         <description><![CDATA[]]></description>
         <enclosure url="http://www.ultimaterollercoaster.com/coasters/history/1960_1970/img/kbf_corkscrew.jpg" />
         <pubDate>2014-04-14 00:22:13 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922782</guid>
      </item>
      <item>
         <title>Marble Coaster Construction &amp;amp; Math Brunettes and the Jets&amp;nbsp;</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922890</link>
         <description><![CDATA[<blockquote style="margin-right: 0px;" dir="ltr"><blockquote style="margin-right: 0px;" dir="ltr"><blockquote style="margin-right: 0px;" dir="ltr"><blockquote style="margin-right: 0px;" dir="ltr">&nbsp;</blockquote></blockquote></blockquote></blockquote>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 00:24:22 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25922890</guid>
      </item>
      <item>
         <title>Six Flags Fiesta Texas</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25923181</link>
         <description><![CDATA[<p>This ride has&nbsp;a few elements.</p>]]></description>
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         <pubDate>2014-04-14 00:32:34 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25923181</guid>
      </item>
      <item>
         <title>My Dream Roller Coaster</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25923392</link>
         <description><![CDATA[<p>Superman at Six Flags Discovery Kingdom is my dream roller coaster because I have never been to Six Flags. jus from this picture the ride looks like it has a lot of thrill elements.</p>]]></description>
         <enclosure url="http://www.thecoastercritic.com/wp-content/uploads/2011/09/Superman-Ultimate-Flight-Six-Flags-Discovery-Kingdom-1024x819.jpg" />
         <pubDate>2014-04-14 00:40:20 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25923392</guid>
      </item>
      <item>
         <title>Vocabulary</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25923828</link>
         <description><![CDATA[<p>Acceleration:&nbsp;This is the rate of which an object's speed or direction changes.&nbsp; Roller coasters are always accelerating or decelerating during the ride, by&nbsp;when they first start and any time they come down a hill the roller coaster tracks make the car accelerate. </p><p>Centripetal force:&nbsp;This force is a&nbsp;major part of roller coasters with loops.&nbsp; The&nbsp; force is responsible for pushing an object in an inward direction.</p><p>Centrifugal force:&nbsp;This force&nbsp;is a force in a circle pushing away from the center, either a reaction to a centripetal force or a result of inertia.</p><p>"g": The&nbsp;unit that represents the acceleration caused by gravity.</p><p>Momentum: Anything that has mass and is in motion has momentum. Mass and velocity are the factors of momentum.</p><p>Weightlessness: When you feel like no forces are acting against you happens because gravity pulls you down while the acceleration seems to be pulling&nbsp; you up. there is a&nbsp;rate of acceleration that&nbsp;keeps these&nbsp;opposite forces balanced.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 00:53:04 UTC</pubDate>
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      <item>
         <title></title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991467</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-14 19:49:55 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991467</guid>
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      <item>
         <title></title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991864</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-14 19:57:01 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991864</guid>
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      <item>
         <title></title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991918</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-14 19:58:05 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991918</guid>
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      <item>
         <title></title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991968</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-14 19:59:22 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25991968</guid>
      </item>
      <item>
         <title></title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25992086</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-14 20:02:43 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25992086</guid>
      </item>
      <item>
         <title>Roller Coaster Infomation</title>
         <author>juliannab13131</author>
         <link>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25992176</link>
         <description><![CDATA[<p>Total length: 7.4 m</p><p>Drop heights: 1st-185cm</p><p>2nd-15cm </p><p>3rd-36cm</p><p>Loop Measurements: </p><p>1st- Height= 22cm Width= 24cm</p><p>2nd-Height= 16cm Width= 21cm</p><p>Average Speed: 2.22 m/sec</p><p>Potential Energy:9.9715 Joule </p><p>Kinetic Energy: 0.0044 Joule</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 20:05:27 UTC</pubDate>
         <guid>https://padlet.com/juliannab13131/Juliannabutterfield1/wish/25992176</guid>
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