Question

Calculate the work done in blowing a soap bubble from a diameter of 3 cm to one of 30 cm if the surface tension be 0.045 N/m.​

Answer 1

Answer:

Answer

r

1

=0

r

2

=0.006m

S=2.5×10

−2

Nm

−2

work done =S×8π×(r

2

−r

1

)

=2.5×10

−2

×8π×(.006)

2

−0

2