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ELASTIC COLLISION:
"The collision in which both linear momentum and K.E are conserved is said to be elastic collision".
OR
"In the ideal case when no K.E is lost, the collision is said to be perfectly elastic".
For instance, when a hard ball is dropped onto a marble floor, it rebounds to very nearly the initial height. It loses negligible amount of energy in the collision with the floor.
Define angle of repose Consider a body resting on a plane OA. Assume this plane OA is slowly raised from the horizontal position to incline it with the horizontal.
An echo is easily the retransmission of speaker's own voice caused by reflection at a distance surface. If there is a sound reflector at a distance d from host, then the time in
In an expression ½kx2 for the potential energy accumulates in the spring what does the x represent? Answer: Quite frequently we consider there to be an object at
Does upthrust change in different liquids (examples please)
Applications of cement mortar 1. It is used to carry out pointing and plaster works on exposed surface of masonry. 2. It is used to bind the building units like bricks, ston
Mechanical energy E of particle, system or object is explained as the sum of kinetic energy K and potential energy U, i.e. E = K + U. It is a scalar quantity having dimensions [ML
In the nucleus of 20 Ca 40 there are: (1) 40 protons and 20 electrons (2) 20 protons and 40 electrons (3) 20 protons and 20 neutrons (4) 20 protons and 40 neutrons
The input piston of a hydraulic jack has cross sectiona
The force between two magnetic poles divided by a distance ‘d' in air is ‘F'. At what distance between them the force becomes doubled?
Is the sheath color important? This is a mainly slippery subject and the cause of heated debate. Several scientists affirm that an opaque light or white colored cladding, parti
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