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-rw-r--r--html/encyclopedia/physics.html32
1 files changed, 19 insertions, 13 deletions
diff --git a/html/encyclopedia/physics.html b/html/encyclopedia/physics.html
index 780b7dc..b21b3c3 100644
--- a/html/encyclopedia/physics.html
+++ b/html/encyclopedia/physics.html
@@ -97,13 +97,13 @@
<td>areal</td>
<td class="math">\(A\)</td>
<td>kvadratmeter</td>
- <td class="math">\(m ^ 2\)</td>
+ <td class="math">\(m^2\)</td>
</tr>
<tr>
<td>acceleration</td>
<td class="math">\(a\)</td>
<td>meter pr. kvadratsekund</td>
- <td class="math">\(\frac{m}{s ^ 2}\)</td>
+ <td class="math">\(\frac{m}{s^2}\)</td>
</tr>
<tr>
<td>varmekapacitet</td>
@@ -127,7 +127,7 @@
<td>volumen</td>
<td class="math">\(V\)</td>
<td>kubikmeter</td>
- <td class="math">\(m ^ 3\)</td>
+ <td class="math">\(m^3\)</td>
</tr>
<tr>
<td>hastighed</td>
@@ -139,7 +139,7 @@
<td>densitet</td>
<td class="math">\(\rho\)</td>
<td>kilogram pr. kubikmeter</td>
- <td class="math">\(\frac{kg}{m ^ 3}\)</td>
+ <td class="math">\(\frac{kg}{m^3}\)</td>
</tr>
</table>
<p>Yderligere mål:</p>
@@ -180,14 +180,14 @@
<p class="large">Formler</p>
<p class="math">\(a = \frac{F}{m}\)</p>
<p>På en planet:</p>
- <p class="math">\(g = \frac{Gm}{r ^ {2}}\)</p>
+ <p class="math">\(g = \frac{Gm}{r^{2}}\)</p>
<p>... hvori <i>r</i> er afstanden til planetens kerne.</p>
- <p class="math">\(g = \frac{981}{100} \frac{m}{s ^ 2}\)</p>
+ <p class="math">\(g = \frac{981}{100} \frac{m}{s^2}\)</p>
<p>... er standard på Jorden.</p>
<br />
<p class="math">\(E = Fs\)</p>
<p class="math">\(E = Pt\)</p>
- <p class="math">\(K = \frac{mv ^ {2}}{2}\)</p>
+ <p class="math">\(K = \frac{mv^{2}}{2}\)</p>
<p class="math">\(Q = CT = cmT\)</p>
<p>Gravitation:</p>
<p class="math">\(U = Fs = mgs\)</p>
@@ -196,7 +196,7 @@
<p class="math">\(F = ma\)</p>
<p class="math">\(F = \frac{E}{s}\)</p>
<p>Gravtitation mellem to objekter:</p>
- <p class="math">\(F = \frac{Gm_{0}m_{1}}{r ^ {2}}\)</p>
+ <p class="math">\(F = \frac{Gm_{0}m_{1}}{r^{2}}\)</p>
<p>... <i>m_0</i> og <i>m_1</i> er masserne af objekterne og <i>r</i> er distancen mellem centrene af de to objekter.</p>
<br />
<p class="math">\(P = \frac{E}{t}\)</p>
@@ -232,14 +232,20 @@
</tr>
<tr>
<td>Boltzmanns konstant</td>
- <td class="math">\(k_b\)</td>
+ <td class="math">\(k_B\)</td>
+ </tr>
+ <tr>
+ <td>Stefan-Boltzmann konstanten</td>
+ <td class="math">\(\sigma\)</td>
</tr>
</table>
+ <p class="graphicText">Evt. se <a href="/html/encyclopedia/mathematics.html#constants">matematikkens konstanter</a>.</p>
<p class="math">\(c = 299\ 792\ 458\ \frac{m}{s}\)</p>
- <p class="math">\(e = \frac{1\ 602\ 176\ 634}{10 ^ {28}}\ C\)</p>
- <p class="math">\(G \approx \frac{66\ 743}{10 ^ {15}}\ \frac{m ^ 3}{kg \cdot s ^ 2}\)</p>
- <p class="math">\(h = \frac{662\ 607\ 015}{10 ^ {42}}\ \frac{J}{Hz}\)</p>
- <p class="math">\(k_b = \frac{1\ 380\ 649}{10 ^ {29}}\ \frac{J}{K}\)</p>
+ <p class="math">\(e = \frac{1\ 602\ 176\ 634}{10^{28}}\ C\)</p>
+ <p class="math">\(G \approx \frac{66\ 743}{10^{15}}\ \frac{m^3}{kg \cdot s^2}\)</p>
+ <p class="math">\(h = \frac{662\ 607\ 015}{10^{42}}\ \frac{J}{Hz}\)</p>
+ <p class="math">\(k_B = \frac{1\ 380\ 649}{10^{29}}\ \frac{J}{K}\)</p>
+ <p class="math">\(\sigma = \frac{2\pi^5k_B^4}{15h^3c^2} \approx \frac{5\ 670\ 374\ 419}{10^{17}}\)</p>
</div>
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