effect of upthrust on body

Introduction - The pressure exerted by a liquid on the base of the container depends on the vertical height of the liquid over it not on the area of cross-section. As one goes deeper in the swimming pool, the pressure on the ear drum is found to increase. A column of mercury exerts more pressure th..

Alcohol is not a food replacement as it cannot give any nutrient other than some carbohydrate. But consumption of alcohol can increase the appetite and change the food habits. Alcohol is indeed a sedative (chemical to increase sleepiness or drowsiness), depressant (depresses the functional efficien..

Frictional Effects - An oscillator, in actual practice, almost always lies in a resisting medium, like air, oil etc., where part of its energy is dissipated in overcoming the opposing frictional or viscous forces and its amplitude, therefore, goes on decreasing progressively. Such forces,..

Large scale death of aquatic and terrestrial animals Reduced reproduction rate Increased incidence of diseases Imbalances created in secondary food chains Accumulation of bioaccumulative and non-biodegradable pollutants in animal bodies. Some organochlorine pesticides (li..

The solar spectrum of electromagnetic waves include energy packed heat generating waves called radiation waves. As they lie beyond red colour waves of visible spectrum, they are also called 'infra-red rays'. These infrared rays lie in the wave length range of 700-900 mm. Two types of infrared rays ..

The Effects of Oxidation Reactions In Every Day Life - Corrosion :- Many metals are chemically active elements and get easily affected by substances like moisture, air, acids, etc. One must have observed iron articles that are shiny when new, but get coated with a reddish brown powder whe..

Since the denominator in the RHS of the above equation is less than 1, f 1 > f 2 . Thus, the increase in the apparent frequency is greater when the source approaches a stationary observer than, when the observer approaches a stationary source. In other words, Doppler effect in sound is..

>Electric fuses are used to prevent overheating due to overload or short circuiting. The earth wire is connected to the metallic body of an applianc..

>The dangerous effects of pollution are governed by factors like concentration of pollutant exposure to pollutant area / section of population affected type of pollutant and dangers caused by them process of degradation / metabolism of pollutants Each of the above factors ultimately decid..

For a body released from a height h, s = h, u = 0 and a = g From the above equation it is clear that the time taken by a body falling under gravity to travel a distance h depends only upon the value of g at that place. The horizontal velocity of the body falling under ..