Updated greek laters @ latex compiling

astrosander правка от
правка #10168 предыдущая #9188 GitHub dbb31ba ← раньше
@@ -67,9 +67,9 @@
<h3>Solution</h3>
<p>
When first atom of the beam arrives to surface after a time $t$, the cylinder has sweep the angle $\varphi$. So
− $$\varphi=\omega t \;(1)$$
+ $$\varphi=\omega t \quad(1)$$
The atoms are displaced from center to surface during same time $t$, considering constant velocity $v$
− $$R=vt \;(2)$$
+ $$R=vt \quad(2)$$
Dividing $(2)$ by $(1)$ and separating $v$
$$\boxed{v = \frac{\omega R}{\varphi}=300 \;{\rm{m/s}}}$$
</p>
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