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  Mean is the arithmetic average.   ;To find mean of ungrouped data and it is obtained by adding the raw scores and dividing the sum by the number of items.   ;There are three methods to find mean for a frequency distribut..

  ;Respiration can be broadly defined as the breakdown of organic compounds into simpler compounds accompanied by the release of energ..

  ;Presence of dangerous unnatural ingredients causing imbalance in the ecosystem and health hazards to human beings and animals can be called as pollutio..

Let A (a,f (a)) and B (b,f (b)) be two points on the graph of f (x) such that f(a) = f(b), then  $ c (a, b) such that the tangent at P(c, f(c)) is parallel to x - axis..

  ; Merits:   ;1. Mean deviation is easy to calculate. This measure is simple to understand.   ;2. This can be calculated from any average.   ;3. It is less affected by extreme observations.   ..

  ;Let f be real valued function in [a,b] such that,   ;1. f is continuous in [a,b].   ;2. f is differentiable in (a,b).   ..

  ;Consider a rigid body rotating about a fixed axis AB. Consider a particle 'p' of mass 'm' rotating in a circle of radius 'r..

  ;A wide variety of physiological processes are carried out unconsciously by the endocrine system through chemical messengers called "hormones." The endocrine system is a collection of glands that produces these hormones, which are necessary for normal bodily functions. The horm..

Consider a rigid body rotating about a fixed axis AB. Consider a particle 'p' of mass 'm' rotating in a circle of radius 'r'. The total torque on all the forces acting on all the particles of the body is: where ..

Physical Meaning of Angular Momentum - Consider a particle capable of rotation about an axis. At any time t, let its momentum be and , the position vector. Then the angular momentum is given by the cross product and . = x..