The soap bubble flew into the air and makes a diameter of 5 cm. If the surface tension of the soap solution in air at 1 atm and 20°C is 0.025 N/m, calculate the gauge pressure inside it. [Buih sabun ini terbang ke udara dan membentuk diameter 5 cm. Sekiranya tegangan subpermukaan larutan sabun ini pada I atm dan 20°C udara adalah 0.025 N/m, kirakan tekanan tolok di dalamnya.]

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Timah Tasoh dam in Perlis has the dimensions of 20-m high and 770-m wide. It is filled
with water of density equals to 1000 kg/m and gravitational force equals to 9.81 m/s?.
[Empangan Timah Tasoh di Perlis mempunyai dimensi 20-m tinggi dan 770-m lebar. Ianya dipenuhi air
dengan ketumpatan bersamaan 1000 kg/m² dan daya graviti bersamaan 9.81 m/s'.]
(a) The water from the dam is mixed with soap to make a soap solution and bubbles.
When the bubbles are released into the air, they form nearly spherical shape.
[Air daripada empangan ini dicampur dengan sabun untuk dijadikan larutan bersabun dan buih-
buih. Apabila buih-buih ini dilepaskan ke udara, mereka membentuk bentuk yang hamper bulat.]
(ii) The soap bubble flew into the air and makes a diameter of 5 cm. If the
surface tension of the soap solution in air at 1 atm and 20°C is 0.025 N/m,
calculate the gauge pressure inside it.
[Buih sabun ini terbang ke udara dan membentuk diameter 5 cm. Sekiranya tegangan
subpermukaan larutan sabun ini pada I atm dan 20°C udara adalah 0.025 N/m, kirakan
tekanan tolok di dalamnya.)
Transcribed Image Text:Timah Tasoh dam in Perlis has the dimensions of 20-m high and 770-m wide. It is filled with water of density equals to 1000 kg/m and gravitational force equals to 9.81 m/s?. [Empangan Timah Tasoh di Perlis mempunyai dimensi 20-m tinggi dan 770-m lebar. Ianya dipenuhi air dengan ketumpatan bersamaan 1000 kg/m² dan daya graviti bersamaan 9.81 m/s'.] (a) The water from the dam is mixed with soap to make a soap solution and bubbles. When the bubbles are released into the air, they form nearly spherical shape. [Air daripada empangan ini dicampur dengan sabun untuk dijadikan larutan bersabun dan buih- buih. Apabila buih-buih ini dilepaskan ke udara, mereka membentuk bentuk yang hamper bulat.] (ii) The soap bubble flew into the air and makes a diameter of 5 cm. If the surface tension of the soap solution in air at 1 atm and 20°C is 0.025 N/m, calculate the gauge pressure inside it. [Buih sabun ini terbang ke udara dan membentuk diameter 5 cm. Sekiranya tegangan subpermukaan larutan sabun ini pada I atm dan 20°C udara adalah 0.025 N/m, kirakan tekanan tolok di dalamnya.)
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