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Explain newtons cradle-A typical Newton's cradle consists of metal balls of identically sized in a series suspended in a metal frame ,so that they are just touching each other at rest. Each ball is gently attached to the frame by 2- wires of equal length and angled away from each other. This restricts the pendulum's movements to the same plane.
Newtons Cradle
A disk defamation horizontally on a frictionless, mass less, rotational motion support such that the disk is spinning freely about a vertical axis through the centre of the disk an
The cold filament resistance of a light bulb is 20.0). The bulb consumes 75 W when it is operating from a 120-V source. By what factor does the start-up current in the bulb
A particle is projected from ground with velocity 40sqrt2m/s.find- a)velocity and b)displacement of particle after 2sec .Take g=10m/s^2 Ans) velocity v=u+at a=-g v=40√2-10*2
An electron in a hydrogen atom makes a transition from E 3 to E 1 . How much energy does the atom lose?
A galvanometer together with an unknown resistance in series is linked across two identical batteries each of 1.5V. whenthese batteries are connected in series the galvanometer rec
What is the Specific Heat of Copper? Ans) 387 J/Kg. C or 0.0924 Cal/g.C
Define Heat engine Heat engine is a device by which a system is made to undergo a cyclic process that results in conversion of heat into work. It is explained as the ratio o
Electrostatic field is caused by stationary charge, Induced field is caused by time-varying magnetic field
Static electricity: If electrons are removed from one material and placed on another, or if they are moved from one region of a piece of material to another, we have a separati
When two rays of same frequency, similar wavelength, and similar speed moves in the same direction, their superimposition gives result in the interference. Due to interference the
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