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MATHS TALENT TEST SCORES RELEASED OVERALLS

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THE BLACK HOLE

 

A region is an object with such powerful gravity that nothing can shake it, including light.

The black hole's mass is concentrated during a point of just about infinite density.

this is nothing but singularity. At the singularity, gravity is almost infinitely strong.
it crushes normal space-time out of existence. As the distance from the singularity increases, its gravitational influence reduce.

At a particular distance, which depends on the singularity's mass, the speed needed to flee from the region equals the speed of sunshine.

This distance marks the black hole 'horizon', which is like its surface.

Anything that passes through the surface is trapped inside the black hole. Black holes are available several varieties, counting on mass.

black holes are formed due to the collapse of large stars at the end of their life cycle.

Does OUR SUN BECOME A BLACK HOLE?

no, why means read the following data carefully.


Our Sun is really too small to finish up as a region. our sun does not contain enough matter to exert that
kind of gravitational force on itself. if the sun becomes a black hole, it has to be more than 10 times greater mass.


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NEWTON LAWS

ONE NEWTON = ONE KG METER PER SECOND SQUARE.  NEWTON FIRST LAW : states that inertia of motion. any object can't be move unless there is a force exerts on it. NEWTON SECOND LAW: states that force is equal to the product of mass into acceleration(momentum). NEWTON THIRD LAW: states that when two objects interact together then they apply forces to each other equal size and opposite direction. which means for every action there is an equal and opposite reaction.
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ALKANES AND ALKENES,ALKYNES

ALKANES: these are also called paraffin. alkanes are saturated hydrocarbons. the formula of alkanes (CnH2n+2). when the H atom is removed from the alkane then it is replaced by the name of alkyl. the formula for alkyl is (Cn H2n+1). the carbon atom in it shows the sp3 hybridization. the bond length is equal to 1.54°A. ALKENES: these are also called as olefins means form oil products. it possess a double bond between them. the formula is (CnH2n). the carbon atom in it shows the sp2 hybridization. the bond length is equal to 1.34°A. ALKYNES: these are also called as acetylenes. the formula for this is (Cn H2n-2). the carbon atom in it possesses a triple bond and also shows the linear shape means it is in an sp hybridization. the bond length is equal to 1.20°A.
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