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! ~^~ ElaKiri Science Book ~^~ - 03-31-2010, 02:45 PM





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SCIENCE MEGA THREAD
by
Elakiri Maths and Science Society
"SCIENCE 4 ALL"
************************************************



අපේ අරමුණු
Our purposes


අපි කුඩා කාලෙ ඉඳලා ඉගෙන ගත්ත දේ අමතක නොවී අපේම සොයුරු සොයුරියන් එක්ක බෙදා හදා ගන්න.

සාමන්‍ය පෙල උසස් පෙල නංගිලා මල්ලිලා ට අපිට හැකි පමණින් උදව් කරන්න.

විද්‍යාව නම් නිමක් නැති සයුරේ කිමිදීමට කැමති ඔබ හඳුනා ගන්න.



ඉතින් යහපත් අරමුණක් පෙරදැදිව අරඹන්න යන මේ ව්‍යායාමයට ඔබ සැමට ආරාධනා කරමු.

෴ එලකිරි-ගණිත හා විද්‍යා සංගමය ෴


අපිත් එක්ක එකතු වෙන්න
එලකිරි ගණිත විද්‍යා සංගමය
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03-31-2010, 02:46 PM

meaka thamaa thread eka yana kramaya.hamoma meaka anugamanaya karoth hamoetama hondhayi.

1) hamotama thamanta puluwan widhiyata thaman kamathi subject ekak gana thread eke danna puluwan.

2)membersla nowana ayatath post danna puluwan.

3)eka eka subjects wena wenama font paata wenas kara kara damu.

Maths-black
biology-red
physics-blue
chemisry-green
Tricks and tips-pink
philosophy-gray


4)Thread eka live thiya ganna hoda science related pic use karanna ona.

5)Thread eke dana post puluwan tharam saralawa sinhalen ketiyen danna puluwan nam hodai.

6)At last oyalage Ideas thiyenawanam methana post karanna

Last edited by heshi32; 03-31-2010 at 09:18 PM.
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ආකිමිඩිස් නියමයේ නොපෙනෙන පැත්ත. - 03-31-2010, 02:46 PM

නියමයි මල්ලි.
ඔන්න මගේ ගානෙ post එකක්.

We will continue this together.
ආකිමිඩිස් නියමයේ අපට නොපෙනෙන පැත්ත.
ආකිමිඩිස් නියමය
වස්තුවක් භාගික වශයෙන් හෝ සම්පූර්නයෙන් නිශ්චල අසම්පීඩ්‍ය් තරලයක ගිලී පවතින විට එහි ඇති වන උඩුකුරු තෙරපුම එමගින් විස්ථාපිත තරලයේ බරට සමාන වේ.

සාධනය
තරලයේ ගිලී ඇති විට පීඩන ඇති වන්නෙ මේ අයුරිනි.



ඝනකයක් සලකා



A = ඝනකයේ පතුලේ පෘෂ්ට වර්ගඵලය
H-h = ඝනකයේ උස
A(H-h) = පරිමාව = V

ඉහල පෘෂ්ටය මත පීඩනය = hpg
බලය = Ahpg

පහල පෘෂ්ටය මත පීඩනය = Hpg
බලය = AHpg

ඉහලට බලය = A(H-h)pg
= Vpg

උඩුකුරු තෙරපුම = VPg


පහලට මුලු බලය = Mg -Vpg

= Vg(d-p)

නමුත් මෙහිදී ඝනකයට යටින් තරලය නොපැවතුනේ නම් පහලින් පීඩනයක් ඇති නොවේ.
එවිට ඉහලින් පහලට ඇති වන බලය පමණක් සම්ප්‍රයුක්ත බලයක් ලෙස තිබේ.
එවිට


එවිට වස්තුවෙ බර හා සම්ප්‍රයුක්ත බලය යන දෙකම පහලට තිබෙන නිසා රසදිය තුල රිජුෆෝම් වැනි දෙයක් වුවද ගිල්වා තැබිය හැක.



මෙය practically කිරීමේදී ගැටලු ඇතිවිය හැකිය.නමුත් යටින් ඇති ස්තරය මැලියම් වැනි දෙයකින්(තරලයක් නොවන) අදාල පෘෂ්ටය සමග සම්බන්ධ කල විට එම ගැටලුව මග හැරී යනු ඇත.

මෙහි යම් යම් ගැටලු තිබිය හැක.මෙය මට A/L පන්තියේදී ඇති වු ගැටලුවක් නිසා සරල බව සහ වැරදි තිබේ නම් ඒ ගැනද මාගේ කනගාටුව.

ඉහත සාධනය සදහා පැස්කල් සම්ප්‍රෙශන මූලධර්මය ගැන අදහසක් තිබීම වැදගත්ය.

Last edited by Elcid; 03-31-2010 at 05:00 PM.
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03-31-2010, 03:12 PM

nice work bro ...
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03-31-2010, 03:15 PM

Good work..
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03-31-2010, 03:16 PM

excellent work
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03-31-2010, 03:20 PM

good work bro.
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03-31-2010, 03:24 PM

good work bro
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03-31-2010, 03:25 PM

නියමයි මල්ලි. අපි පුලුවන් තරම් උදව් කරන්නම් මේක කරගෙන යන්න
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03-31-2010, 03:27 PM

ohomama yamu....
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