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Did you know?
A bolt of lightning heats the surrounding air to ~30,000 K — five times hotter than the Sun's surface.
Did you know?
A bolt of lightning heats the surrounding air to ~30,000 K — five times hotter than the Sun's surface.
A soap bubble, having radius of mm, is blown from a detergent solution having a surface tension of N/m. The pressure inside the bubble equals at a point below the free surface of water in a container. Taking m/s density of water kg/m the value of is:
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To solve this problem, we need to find the pressure inside the soap bubble and equate it to the pressure at a depth below the water surface.The excess pressure inside a soap bubble is given by:
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