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ºÎ·Â(buoyancy), ºñÁßÀÌ ´Ù¸¥ ¾×ü¿¡¼­ÀÇ ºÎ·ÂÀ¸·Î ¹°Ã¼ÀÇ ºñÁß·®(specific weight) ±¸Çϱâ

ÀÛ¼ºÀÚ Uploader : »çÀÌ´Ù ÀÛ¼ºÀÏ Upload Date: 2021-03-22º¯°æÀÏ Update Date: 2021-03-22Á¶È¸¼ö View : 742

¾î¶² ¹°Ã¼°¡ ºñÁßÀÌ ¥ã1 ÀÎ ¾×ü¿¡¼­ÀÇ ºÎ·ÂÀÌ F1 (N) ÀÌ°í, ºñÁßÀÌ ¥ã2 ÀÎ ¾×ü¿¡¼­ÀÇ ºÎ·ÂÀÌ F2 (N) ÀÏ ¶§, ¹°Ã¼ÀÇ ºñÁß·® W (N/m^3) Àº ´ÙÀ½°ú °°ÀÌ ±¸ÇÒ ¼ö ÀÖ´Ù.

¹°ÀÇ ¹Ðµµ°¡ ¥ñ (kg/m^3), Á߷°¡¼Óµµ°¡ g (m/s^2) ÀÏ ¶§, ¹°Ã¼ÀÇ ºñÁß°ú ºÎÇǸ¦ °¢°¢ ¥ã, V (m^3) À̶ó°í Çϸé, ºÎ·ÂÀº,

F1 = (¥ã1-¥ã)*¥ñ*g*V
F2 = (¥ã2-¥ã)*¥ñ*g*V

ÀÌ°í, F1 À» F2 ·Î ³ª´©¾î Á¤¸®Çϸé,

F1/F2 = (¥ã1-¥ã)/(¥ã2-¥ã)

(F1/F2)¥ã2 - (F1/F2)¥ã = ¥ã1-¥ã

(1-(F1/F2))¥ã = ¥ã1-(F1/F2)¥ã2

¥ã = (¥ã1-(F1/F2)¥ã2)/(1-(F1/F2))

ÀÌ µÈ´Ù.

¹°ÀÇ ºñÁß·®Àº 1000 kgf/m^3 = 1000*g N/m^3 À̹ǷÎ,

W = 1000*g*¥ã = 1000*g*(¥ã1-(F1/F2)¥ã2)/(1-(F1/F2))

ÀÌ µÈ´Ù.

*** Âü°í¹®Çå[References] ***

W = 1000*g*(¥ã1-(F1/F2)*¥ã2)/(1-(F1/F2))
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º¯¼ö¸í Variable º¯¼ö°ª Value º¯ ¼ö ¼³ ¸í Description of the variable


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