**Q1) What is surface tension? What are the units of surface tension?**Surface tension is a physical property representing the elastic tendency of a fluid surface that makes it acquire the least possible surface area. It is the result of the cohesive forces between liquid molecules and is typically measured in milliNewtons per meter (mN/m) or dynes per centimeter (dyn/cm).**From the figure, explain how surface tension relates to the force \( F \) needed to hold the movable side, and the length of the immovable side \( L \).**The diagram shows a rectangular surface area where one side, measuring \( L \), is fixed, and the opposite side can move horizontally by a distance \( dx \). The force \( F \) required to hold the movable side in place is directly related to the surface tension \(\gamma\) and the length \( L \) of the immovable side. The relationship is given by the equation:\[ F = \gamma \times L \]Here, \(\gamma\) (gamma) represents the surface tension of the fluid. The force \( F \) is required to overcome the surface tension acting along the length \( L \) to maintain the movable side's position.

Surface tension can be defined as the property of the fluid to keep the molecule of the fluid…

Q1) What is surface tension? What are the units of surface tension? From the figure, explain how surface tension relates to the force Fneeded to hold the movable side, and the length of the immovable side L. dx.

Q1) What is surface tension? What are the units of surface tension? From the figure, explain how surface tension relates to the force Fneeded to hold the movable side, and the length of the immovable side L. dx.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

**Q1) What is surface tension? What are the units of surface tension?**

Surface tension is a physical property representing the elastic tendency of a fluid surface that makes it acquire the least possible surface area. It is the result of the cohesive forces between liquid molecules and is typically measured in milliNewtons per meter (mN/m) or dynes per centimeter (dyn/cm).

**From the figure, explain how surface tension relates to the force \( F \) needed to hold the movable side, and the length of the immovable side \( L \).**

The diagram shows a rectangular surface area where one side, measuring \( L \), is fixed, and the opposite side can move horizontally by a distance \( dx \). The force \( F \) required to hold the movable side in place is directly related to the surface tension \(\gamma\) and the length \( L \) of the immovable side. The relationship is given by the equation:

\[ F = \gamma \times L \]

Here, \(\gamma\) (gamma) represents the surface tension of the fluid. The force \( F \) is required to overcome the surface tension acting along the length \( L \) to maintain the movable side's position.

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