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The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
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surface tension
This document discusses surface tension and methods for measuring surface tension. It defines surface tension as the imbalance of intermolecular forces at a liquid-air interface. Several common methods for measuring surface tension are described, including the Wilhelmy plate method, Du Nuoy ring method, sessile drop method, and maximum bubble pressure method. Factors that influence surface tension such as temperature and presence of surfactants are also covered.
Surface Tension
Surface tension is caused by attractive forces between molecules at the surface of a liquid that do not experience interactions from above. This results in several observable effects with water, including the beading of rainwater on leaves, the formation of drops when water detaches from a faucet due to gravitational stretching overcoming surface tension, and small, lightweight objects floating due to surface tension bearing their weight if they are non-wetting. Surface tension also causes the separation of immiscible liquids like oil and water and the "tears of wine" phenomenon where ethanol evaporates faster than water from an alcoholic beverage, modifying surface tensions. Surfactants reduce surface tension and allow soap bubbles and emulsions to form stable structures.
Surface tension ppt
The document discusses the surface tension of liquids. Surface tension allows insects like water striders to walk on water and causes water to form spherical droplets on surfaces like taro leaves. Surface tension decreases with increased temperature or impurities on the surface or dissolved in the liquid. Highly soluble substances increase surface tension while sparingly soluble substances decrease it.
PHYSICS FREE NOTES: Surface Tension (Theory).BY ATC
ANURAG TYAGI CLASSES (ATC) is an organisation destined to orient students into correct path to achieve
success in IIT-JEE, AIEEE, PMT, CBSE & ICSE board classes. The organisation is run by a competitive staff comprising of Ex-IITians. Our goal at ATC is to create an environment that inspires students to recognise and explore their own potentials and build up confidence in themselves.ATC was founded by Mr. ANURAG TYAGI on 19 march, 2001.
VISIT US AT;
www.anuragtyagiclasses.com
or call us @ 09818777622
surface tension power point presentation
This document discusses surface tension, which allows liquids to resist external forces due to cohesive forces between their molecules. Surface tension is caused by liquid molecules at the surface being pulled inward more than molecules in the bulk of the liquid. This contraction of the surface minimizes its area and causes water droplets to form spherical shapes. The document gives examples of how surface tension allows insects and objects to float on water and causes water to bead up without being absorbed by some surfaces.
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surface tension
This document discusses surface tension and methods for measuring surface tension. It defines surface tension as the imbalance of intermolecular forces at a liquid-air interface. Several common methods for measuring surface tension are described, including the Wilhelmy plate method, Du Nuoy ring method, sessile drop method, and maximum bubble pressure method. Factors that influence surface tension such as temperature and presence of surfactants are also covered.
Surface Tension
Surface tension is caused by attractive forces between molecules at the surface of a liquid that do not experience interactions from above. This results in several observable effects with water, including the beading of rainwater on leaves, the formation of drops when water detaches from a faucet due to gravitational stretching overcoming surface tension, and small, lightweight objects floating due to surface tension bearing their weight if they are non-wetting. Surface tension also causes the separation of immiscible liquids like oil and water and the "tears of wine" phenomenon where ethanol evaporates faster than water from an alcoholic beverage, modifying surface tensions. Surfactants reduce surface tension and allow soap bubbles and emulsions to form stable structures.
Surface tension ppt
The document discusses the surface tension of liquids. Surface tension allows insects like water striders to walk on water and causes water to form spherical droplets on surfaces like taro leaves. Surface tension decreases with increased temperature or impurities on the surface or dissolved in the liquid. Highly soluble substances increase surface tension while sparingly soluble substances decrease it.
PHYSICS FREE NOTES: Surface Tension (Theory).BY ATC
ANURAG TYAGI CLASSES (ATC) is an organisation destined to orient students into correct path to achieve
success in IIT-JEE, AIEEE, PMT, CBSE & ICSE board classes. The organisation is run by a competitive staff comprising of Ex-IITians. Our goal at ATC is to create an environment that inspires students to recognise and explore their own potentials and build up confidence in themselves.ATC was founded by Mr. ANURAG TYAGI on 19 march, 2001.
VISIT US AT;
www.anuragtyagiclasses.com
or call us @ 09818777622
surface tension power point presentation
This document discusses surface tension, which allows liquids to resist external forces due to cohesive forces between their molecules. Surface tension is caused by liquid molecules at the surface being pulled inward more than molecules in the bulk of the liquid. This contraction of the surface minimizes its area and causes water droplets to form spherical shapes. The document gives examples of how surface tension allows insects and objects to float on water and causes water to bead up without being absorbed by some surfaces.
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Light refracts when passing from one optical medium to another with a different density. When light travels from a denser to rarer medium, it bends away from the normal, and when traveling from rarer to denser, it bends towards the normal. The change in direction light undergoes when passing obliquely between media of different densities is called refraction.
surface tension power point
This document discusses surface tension, which allows liquids to resist external forces due to cohesive forces between their molecules. Surface tension is caused by liquid molecules at the surface being pulled inward more than molecules in the bulk of the liquid. This contraction of the surface minimizes its area and causes water droplets to form spherical shapes. The document gives examples of how surface tension allows insects and objects to float on water and causes water to bead up without being absorbed by some surfaces.
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A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
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Healing can occur in two ways: Regeneration and Repair
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Kuttanad is a low-lying region across three districts in Kerala, India, known for its vast rice paddy fields. Farming and fishing are the main occupations in Kuttanad. The Tottappilli Spillway was constructed in 1959 as a permanent solution to flooding in Kuttanad, diverting waters from nearby rivers to the sea before reaching Vembanad Lake. The Thanneermukkam Bund was built in 1974 across Vembanad Lake to prevent saltwater intrusion into Kuttanad's lowlands. Canals, rivers and lakes in Kuttanad are often used as dumping grounds, polluting the local water sources.
Political parties ppt blog
Political parties are organizations that seek to achieve common goals through political power. In democracies, parties are elected to run governments. Parties are required to register with India's Election Commission and can be national or state-level. Major national parties include the BJP, Congress, and Communist Party of India, each with their own symbols. Regional parties operate mainly within one state. Parties contest elections, nominate candidates, make laws, form governments, and shape public opinion.
Rational Numbers PPT
This document contains notes from a mathematics class taught by Soumya.S at Fatima Memorial Training College. The notes cover several topics:
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Rational Numbers PPT
This document contains notes from a mathematics lesson about rational numbers. It defines integers and rational numbers, and explains that rational numbers include both integers and fractions. It then presents several properties of rational numbers, including how to add, subtract, multiply and divide rational numbers in fractional form. Examples are given for each property showing the calculations involved in operations on rational numbers expressed as fractions.
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Light refracts when passing from one optical medium to another with a different density. When light travels from a denser to rarer medium, it bends away from the normal, and when traveling from rarer to denser, it bends towards the normal. The change in direction light undergoes when passing obliquely between media of different densities is called refraction.
surface tension power point
This document discusses surface tension, which allows liquids to resist external forces due to cohesive forces between their molecules. Surface tension is caused by liquid molecules at the surface being pulled inward more than molecules in the bulk of the liquid. This contraction of the surface minimizes its area and causes water droplets to form spherical shapes. The document gives examples of how surface tension allows insects and objects to float on water and causes water to bead up without being absorbed by some surfaces.
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