Fluids#4
The work done in blowing a soap bubble of radius 10 cm is . (Surface Tension-0.03 N/m). Find and submit the answer to one decimal digit.
The answer is 75.4.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Work done = Energy stored in the bubble = 2 x S x A = 2 x 0.03 x 4(pi)r^2 = 2 x 0.03 x 4(pi)(0.1)^2 = 7 539.822 369 x 10^(-6) J = 75.4 x 10^(-4) J.