Question

calculate the force required to take away a flat corcular plate of radius 0.01m from the surface of water. the surface tention of water is 0.075N/m.​

Answer 1

`Force = 0.0047175\ N`

Step-by-step explanation:

Given

`T = 0.075N/m` --- Surface Tension

`r = 0.01m` --- Radius

Required

Determine the required force

First, we calculate the circumference (C) of the circular plate

`C= 2\pi r`

`C= 2 * (22)/(7) * 0.01m`

`C= (2 * 22 * 0.01)/(7)m`

`C= (0.44)/(7)m`

`C= 0.0629 m`

The applied force is then calculated using;

`Force = C * T`

`Force = 0.0629m * 0.075N/m`

`Force = 0.0047175\ N`