Physics-
General
Easy

Question

A spherical drop of coater has radius 1 mm if surface tension of context is 70 cross times 10 to the power of negative 3 end exponent straight N divided by straight m  difference of pressures betweca inside and outside of the spherical drop is

  1. 35 straight N over straight m squared
  2. 70 straight N over straight m squared
  3. 140 straight N over straight m squared
  4. zero

The correct answer is: 140 straight N over straight m squared

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