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RAGGING-CAN BE GIVEN A MORE POSITIVE DIRECTION
posted on 02 May 2009
by:anshu chaudhry
PARENTS MUST HAVE REALISTIC EXPECTIONS
posted on 02 May 2009
by:anshu chaudhry
SOCIALISATION -THE FOUNDATION 0F HUMAN LIFE
posted on 29 Apr 2009
by:lalit kumar
CBSE Multimedia Animated CD DVD : Free Delivery Dial 01164614067
posted on 28 Mar 2009
by:TopRank India
JUST PASS IT ON..........
posted on 24 Mar 2009
by:anshu chaudhry
SHARING-THE BEST WAY TO GO!
posted on 24 Mar 2009
by:anshu chaudhry
OBESITY ON THE RISE IN CHILDREN
posted on 24 Mar 2009
by:anshu chaudhry
INSTILL HEALTHY EATING HABITS IN YOUR CHILDREN
posted on 24 Mar 2009
by:anshu chaudhry
Schoolsonweb
posted on 20 Feb 2009
by:Poo
DEALING WITH MOOD SWINGS!!!:-(
posted on 15 Feb 2009
by:priyannkaa dey
 
Featured Experiments
1 NO2 N2O4 equilibrium
2 Atomic Spectra of Hydrogen and red shift
This applet shows you atomic spectra of hydrogen.



The wavelengths of hydrogen spectra lines can be described by the following equation:



1/λ=RH*(1/n12-1/n22)

where RH=1.0973732*107 m-1



You can change n1 with the slider bar. The program will plot a series of spectrum lines.

You might want to change the xmax(at the right) to see the full range of the spectra.

One of the line is thicker and with an arrow is the one with n2 equal to slider bar value.



Click within simulation region will toggle "visible spectra range".



You can also find out how the red shift of the spectra calculated from Hubble's law.

v=H0 D where the recessional velocity is proportional to the distance of the star to the earth (D). You can adjust the distance of the star.

And see the red shift of the hydrogen spectra from that star due to the expansion of the universe.





n1=1 NULL series (Ultraviolet)

n1=2 NULL series (Near Ultraviolet and Visible)

n1=3 NULL series (Infrared)

n1=4 NULL series (Infrared)

n1=5 NULL series (Infrared)
3 SN2 reactions
SN2 reactions using Spartan electron density maps
4 Electrochemical Cell
5 Chemical Bonds using Spartan electron density maps
6 Weight of an immersed object in liquid
The buoyant force on an immersed object equals the weight of displaced liquid.
Use the top/right slider (mouse drag the center of scale) to move the object up/down.
When part of the object is immersed in the liquid, the weight indicated on the top scale is reduced.
However, the same amount is increased in the lower scale (support the whole system).
You can change the density of the object or the liquid.
7 Coriolis force
The Coriolis force is a fictitious force exerted on a body when it moves in a rotating reference frame. It is called a fictitious force because it is a by-product of measuring coordinates with respect to a rotating coordinate system as opposed to an actual "push or pull."

This applet simulate particles motions observed from an inertia frame and rotating frame.
The spherical body will rotate when you press "play" button.
The red arrows are velocity vectors at different points on the spherical surface.
Press "jump" to shoot out particles.
You can use mouse to change the 3D view.
8 Relations between Simple Harmonic Motion and Circular Motion
Here we show the relationship between Simple Harmonic Motion and Circular Motion
9 Wave bounced from the boundary and the interference pattern
Watch interference of two wave and how waves were bounced from the boundary.
10 A ball climb up another object on a frictionless surface
Because there is no friction between objects and between object and the ground.
The total momentum in the horizontal direction must be conserved.
Try with different initial velocity and water how the motion changed!
The total energy of the system is always conserved,too!

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