http://wiki.math.se/wikis/forberedandefysik/index.php?action=history&feed=atom&title=L%C3%B6sning_1.4%3A1
Lösning 1.4:1 - Versionshistorik
2026-04-07T16:11:20Z
Versionshistorik för denna sida på wikin
MediaWiki 1.11.1
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=3023&oldid=prev
Louwah den 24 april 2018 kl. 08.48
2018-04-24T08:48:40Z
<p></p>
<table style="background-color: white; color:black;">
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<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 24 april 2018 kl. 08.48</td>
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<tr><td colspan="2" class="diff-lineno">Rad 2:</td>
<td colspan="2" class="diff-lineno">Rad 2:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>En människa:<br\></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>En människa:<br\></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><math>100 W\cdot 3600 s/tim \cdot 8 tim/dag\cdot 365 <del style="color: red; font-weight: bold; text-decoration: none;"></math></del>dagar/år <del style="color: red; font-weight: bold; text-decoration: none;"><math> </del>= 1 051 200 000 J/år \approx 1 GJ/år </math></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><math>100 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm </ins>W\cdot 3600 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>s/tim<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>\cdot 8 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>tim/dag<ins style="color: red; font-weight: bold; text-decoration: none;">}</ins>\cdot 365 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>dagar/år<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>= 1 051 200 000 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>J/år<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>\approx 1 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>GJ/år <ins style="color: red; font-weight: bold; text-decoration: none;">}</ins></math></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>9 miljoner människor:<br\></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>9 miljoner människor:<br\></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><math>9 000 000<del style="color: red; font-weight: bold; text-decoration: none;"></math> </del>människor <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>\cdot 1 000 000 000 <del style="color: red; font-weight: bold; text-decoration: none;"></math> </del>J/(människa år) = <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>9\cdot 10^{15}<del style="color: red; font-weight: bold; text-decoration: none;"></math> </del> J/år <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>\approx 9 PJ/år</math></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><math>9 000 000 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>människor<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>\cdot 1 000 000 000 <ins style="color: red; font-weight: bold; text-decoration: none;"> \,\mathrm{</ins>J/(människa <ins style="color: red; font-weight: bold; text-decoration: none;">\,</ins>år)<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>= 9\cdot 10^{15} <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>J/år<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>\approx 9 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>PJ/år<ins style="color: red; font-weight: bold; text-decoration: none;">}</ins></math></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:<br\></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:<br\></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>600 TWh/år = <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>600\cdot 10^{12}<del style="color: red; font-weight: bold; text-decoration: none;"></math> </del> Wh/år = <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>6\cdot 10^{14}<del style="color: red; font-weight: bold; text-decoration: none;"></math> </del> Wh/år <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>\cdot <del style="color: red; font-weight: bold; text-decoration: none;">3600s</del>/h<del style="color: red; font-weight: bold; text-decoration: none;"></math> </del>= <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>2,16 <del style="color: red; font-weight: bold; text-decoration: none;">* </del>10^{18}<del style="color: red; font-weight: bold; text-decoration: none;"></math> </del> J <del style="color: red; font-weight: bold; text-decoration: none;"><math></del>\approx<del style="color: red; font-weight: bold; text-decoration: none;"></math> </del>2 EJ/år.<br\> </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"><math></ins>600 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>TWh/år<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>= 600\cdot 10^{12} <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>Wh/år<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>= 6\cdot 10^{14} <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>Wh/år<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>\cdot <ins style="color: red; font-weight: bold; text-decoration: none;">3600 \,\mathrm{s</ins>/h<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>= 2,16 <ins style="color: red; font-weight: bold; text-decoration: none;">\cdot </ins>10^{18} <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>J<ins style="color: red; font-weight: bold; text-decoration: none;">} </ins>\approx 2 <ins style="color: red; font-weight: bold; text-decoration: none;">\,\mathrm{</ins>EJ/år<ins style="color: red; font-weight: bold; text-decoration: none;">}</math></ins>.<br\> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Hur mycket mer använder vi än vad våra kroppar kan producera?<br\> <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Hur mycket mer använder vi än vad våra kroppar kan producera?<br\> <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt <ins style="color: red; font-weight: bold; text-decoration: none;">'''</ins>200 gånger…!<ins style="color: red; font-weight: bold; text-decoration: none;">'''</ins></div></td></tr>
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Louwah
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=2686&oldid=prev
Louwah den 14 december 2017 kl. 13.57
2017-12-14T13:57:56Z
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<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 14 december 2017 kl. 13.57</td>
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<tr><td colspan="2" class="diff-lineno">Rad 1:</td>
<td colspan="2" class="diff-lineno">Rad 1:</td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Energin ges av <math>E=P\cdot t</math></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>En människa:<br\></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>En människa:<br\></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>100 W\cdot 3600 s/tim \cdot 8 tim/dag\cdot 365 </math>dagar/år <math> = 1 051 200 000 J/år \approx 1 GJ/år </math></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>100 W\cdot 3600 s/tim \cdot 8 tim/dag\cdot 365 </math>dagar/år <math> = 1 051 200 000 J/år \approx 1 GJ/år </math></div></td></tr>
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Louwah
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=509&oldid=prev
Lena Chytraeus den 8 december 2009 kl. 14.28
2009-12-08T14:28:08Z
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<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 8 december 2009 kl. 14.28</td>
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<tr><td colspan="2" class="diff-lineno">Rad 8:</td>
<td colspan="2" class="diff-lineno">Rad 8:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>600 TWh/år = <math>600\cdot 10^{12}</math> Wh/år = <math>6\cdot 10^{14}</math> Wh/år <math>\cdot 3600s/h</math> = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>600 TWh/år = <math>600\cdot 10^{12}</math> Wh/år = <math>6\cdot 10^{14}</math> Wh/år <math>\cdot 3600s/h</math> = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Hur mycket mer använder vi än vad våra kroppar kan producera?<ins style="color: red; font-weight: bold; text-decoration: none;"><br\> </ins><math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td></tr>
</table>
Lena Chytraeus
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=508&oldid=prev
Lena Chytraeus den 8 december 2009 kl. 14.27
2009-12-08T14:27:51Z
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<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 8 december 2009 kl. 14.27</td>
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<tr><td colspan="2" class="diff-lineno">Rad 6:</td>
<td colspan="2" class="diff-lineno">Rad 6:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:<br\></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:<br\></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>600 TWh/år = <math>600\cdot 10^{12}</math> Wh/år = <math>6\cdot 10^{14}</math> Wh/år <math>\cdot 3600s/h</math> = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>600 TWh/år = <math>600\cdot 10^{12}</math> Wh/år = <math>6\cdot 10^{14}</math> Wh/år <math>\cdot 3600s/h</math> = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td></tr>
</table>
Lena Chytraeus
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=507&oldid=prev
Lena Chytraeus den 8 december 2009 kl. 14.27
2009-12-08T14:27:25Z
<p></p>
<table style="background-color: white; color:black;">
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<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 8 december 2009 kl. 14.27</td>
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<tr><td colspan="2" class="diff-lineno">Rad 5:</td>
<td colspan="2" class="diff-lineno">Rad 5:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>9 000 000</math> människor <math>\cdot 1 000 000 000 </math> J/(människa år) = <math>9\cdot 10^{15}</math> J/år <math>\approx 9 PJ/år</math></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>9 000 000</math> människor <math>\cdot 1 000 000 000 </math> J/(människa år) = <math>9\cdot 10^{15}</math> J/år <math>\approx 9 PJ/år</math></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Energianvändningen:</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Energianvändningen:<ins style="color: red; font-weight: bold; text-decoration: none;"><br\></ins></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>600 TWh/år = <math>600 <del style="color: red; font-weight: bold; text-decoration: none;">* </del>10^{12}</math> Wh/år = <math>6 <del style="color: red; font-weight: bold; text-decoration: none;">* </del>10^{14}</math> Wh/år <del style="color: red; font-weight: bold; text-decoration: none;">* </del>3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>600 TWh/år = <math>600<ins style="color: red; font-weight: bold; text-decoration: none;">\cdot </ins>10^{12}</math> Wh/år = <math>6<ins style="color: red; font-weight: bold; text-decoration: none;">\cdot </ins>10^{14}</math> Wh/år <ins style="color: red; font-weight: bold; text-decoration: none;"><math>\cdot </ins>3600s/h<ins style="color: red; font-weight: bold; text-decoration: none;"></math> </ins>= <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td></tr>
</table>
Lena Chytraeus
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=506&oldid=prev
Lena Chytraeus den 8 december 2009 kl. 14.26
2009-12-08T14:26:22Z
<p></p>
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<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 8 december 2009 kl. 14.26</td>
</tr>
<tr><td colspan="2" class="diff-lineno">Rad 3:</td>
<td colspan="2" class="diff-lineno">Rad 3:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>9 miljoner människor:<br\></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>9 miljoner människor:<br\></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><math>9 000 000</math> människor <math>\cdot 1 000 000 000 </math> J/(människa år) = <math>9\cdot 10^{15}</math> J/år <del style="color: red; font-weight: bold; text-decoration: none;">= approximativt </del>9 PJ/år</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><math>9 000 000</math> människor <math>\cdot 1 000 000 000 </math> J/(människa år) = <math>9\cdot 10^{15}</math> J/år <ins style="color: red; font-weight: bold; text-decoration: none;"><math>\approx </ins>9 PJ/år<ins style="color: red; font-weight: bold; text-decoration: none;"></math></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>600 TWh/år = <math>600 * 10^{12}</math> Wh/år = <math>6 * 10^{14}</math> Wh/år * 3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>600 TWh/år = <math>600 * 10^{12}</math> Wh/år = <math>6 * 10^{14}</math> Wh/år * 3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td></tr>
</table>
Lena Chytraeus
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=505&oldid=prev
Lena Chytraeus den 8 december 2009 kl. 14.25
2009-12-08T14:25:50Z
<p></p>
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<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 8 december 2009 kl. 14.25</td>
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<tr><td colspan="2" class="diff-lineno">Rad 2:</td>
<td colspan="2" class="diff-lineno">Rad 2:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>100 W\cdot 3600 s/tim \cdot 8 tim/dag\cdot 365 </math>dagar/år <math> = 1 051 200 000 J/år \approx 1 GJ/år </math></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>100 W\cdot 3600 s/tim \cdot 8 tim/dag\cdot 365 </math>dagar/år <math> = 1 051 200 000 J/år \approx 1 GJ/år </math></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>9 miljoner människor:</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>9 miljoner människor:<ins style="color: red; font-weight: bold; text-decoration: none;"><br\></ins></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>9 000 000 människor <del style="color: red; font-weight: bold; text-decoration: none;">* </del>1 000 000 000 J/(människa år) = <math>9\cdot 10^{15}</math> J/år = approximativt 9 PJ/år</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"><math></ins>9 000 000<ins style="color: red; font-weight: bold; text-decoration: none;"></math> </ins>människor <ins style="color: red; font-weight: bold; text-decoration: none;"><math>\cdot </ins>1 000 000 000 <ins style="color: red; font-weight: bold; text-decoration: none;"></math> </ins>J/(människa år) = <math>9\cdot 10^{15}</math> J/år = approximativt 9 PJ/år</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>600 TWh/år = <math>600 * 10^{12}</math> Wh/år = <math>6 * 10^{14}</math> Wh/år * 3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>600 TWh/år = <math>600 * 10^{12}</math> Wh/år = <math>6 * 10^{14}</math> Wh/år * 3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<br\> Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td></tr>
</table>
Lena Chytraeus
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=504&oldid=prev
Lena Chytraeus den 8 december 2009 kl. 14.25
2009-12-08T14:25:00Z
<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr>
<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 8 december 2009 kl. 14.25</td>
</tr>
<tr><td colspan="2" class="diff-lineno">Rad 1:</td>
<td colspan="2" class="diff-lineno">Rad 1:</td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>En människa:</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>En människa:<ins style="color: red; font-weight: bold; text-decoration: none;"><br\></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>100 W\cdot 3600 s/tim \cdot 8 tim/dag\cdot 365 </math>dagar/år <math> = 1 051 200 000 J/år \approx 1 GJ/år </math></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><math>100 W\cdot 3600 s/tim \cdot 8 tim/dag\cdot 365 </math>dagar/år <math> = 1 051 200 000 J/år \approx 1 GJ/år </math></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>
Lena Chytraeus
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=503&oldid=prev
Lena Chytraeus den 8 december 2009 kl. 14.24
2009-12-08T14:24:39Z
<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr>
<td colspan='2' style="background-color: white; color:black;">← Äldre version</td>
<td colspan='2' style="background-color: white; color:black;">Versionen från 8 december 2009 kl. 14.24</td>
</tr>
<tr><td colspan="2" class="diff-lineno">Rad 1:</td>
<td colspan="2" class="diff-lineno">Rad 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>En människa:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>En människa:</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>100 W <del style="color: red; font-weight: bold; text-decoration: none;">* </del>3600 s/tim <del style="color: red; font-weight: bold; text-decoration: none;">* </del>8 tim/dag<del style="color: red; font-weight: bold; text-decoration: none;">* </del>365 dagar/år = 1 051 200 000 J/år <del style="color: red; font-weight: bold; text-decoration: none;">= approximativt </del>1 GJ/år</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"><math></ins>100 W<ins style="color: red; font-weight: bold; text-decoration: none;">\cdot </ins>3600 s/tim <ins style="color: red; font-weight: bold; text-decoration: none;">\cdot </ins>8 tim/dag<ins style="color: red; font-weight: bold; text-decoration: none;">\cdot </ins>365 <ins style="color: red; font-weight: bold; text-decoration: none;"></math></ins>dagar/år <ins style="color: red; font-weight: bold; text-decoration: none;"><math> </ins>= 1 051 200 000 J/år <ins style="color: red; font-weight: bold; text-decoration: none;">\approx </ins>1 GJ/år <ins style="color: red; font-weight: bold; text-decoration: none;"></math></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>9 miljoner människor:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>9 miljoner människor:</div></td></tr>
<tr><td colspan="2" class="diff-lineno">Rad 6:</td>
<td colspan="2" class="diff-lineno">Rad 6:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Energianvändningen:</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>600 TWh/år = <math>600 * 10^{12}</math> Wh/år = <math>6 * 10^{14}</math> Wh/år * 3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år. Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>600 TWh/år = <math>600 * 10^{12}</math> Wh/år = <math>6 * 10^{14}</math> Wh/år * 3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år.<ins style="color: red; font-weight: bold; text-decoration: none;"><br\> </ins>Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div></td></tr>
</table>
Lena Chytraeus
http://wiki.math.se/wikis/forberedandefysik/index.php?title=L%C3%B6sning_1.4:1&diff=502&oldid=prev
Lena Chytraeus: Ny sida: En människa: 100 W * 3600 s/tim * 8 tim/dag* 365 dagar/år = 1 051 200 000 J/år = approximativt 1 GJ/år 9 miljoner människor: 9 000 000 människor * 1 000 000 000 J/(människa år) = <...
2009-12-08T14:23:05Z
<p>Ny sida: En människa: 100 W * 3600 s/tim * 8 tim/dag* 365 dagar/år = 1 051 200 000 J/år = approximativt 1 GJ/år 9 miljoner människor: 9 000 000 människor * 1 000 000 000 J/(människa år) = <...</p>
<p><b>Ny sida</b></p><div>En människa:<br />
100 W * 3600 s/tim * 8 tim/dag* 365 dagar/år = 1 051 200 000 J/år = approximativt 1 GJ/år<br />
<br />
9 miljoner människor:<br />
9 000 000 människor * 1 000 000 000 J/(människa år) = <math>9\cdot 10^{15}</math> J/år = approximativt 9 PJ/år<br />
<br />
Energianvändningen:<br />
600 TWh/år = <math>600 * 10^{12}</math> Wh/år = <math>6 * 10^{14}</math> Wh/år * 3600s/h = <math>2,16 * 10^{18}</math> J <math>\approx</math> 2 EJ/år. Hur mycket mer använder vi än vad våra kroppar kan producera? <math>2\cdot 10^{18} / 9\cdot 10^{15} </math> = approximativt 200 gånger…!</div>
Lena Chytraeus