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A ball with a mass of 25 grams is dropped from ledge 908 meters above the ground. What is its kinetic energy the instant before it hits the ground? What is the potential energy of the ball before it is dropped? use the ground as the reference point for zero potential energy
Eddington limit (Sir A. Eddington) The theoretical limit on which the photon pressure would go above the gravitational attraction of light-emitting body. i.e., a body emitting
Stefan-Boltzmann law (Stefan, L. Boltzmann): The radiated power P (it is rate of emission of electromagnetic energy) of hot body is proportional to the radiating surface area,
Q. What are uses of ultra-violet radiations? Uses of ultra-violet radiations: (i) They are utilized to destroy the bacteria and for sterilizing surgical instruments.
(1) These rays transmitted in the forward direction of medium with a finite speed. (2) Energy and momentum are transmitted in the direction of propagation of waves without real
An air stream is saturated with a vapor (B) at 130°F and 1 atm pressure. It is cooled down to 80°F where some of the B is condensed and separated from the vapor stream. The remai
Can the whole charge of a body is transfer to another body
An object which does not get its actual configuration at all on the removal of deforming force, though short the deforming force can be is a perfectly plastic body.
4 dimenestional motion examples
In a Newton's ring experiment the diameter of n th ring is 0.46 cm it got shrink to a diameter of 0.40 cm when a liquid is given between the plane glass plate and Plano convex len
AC Output Resistance in Common Emitter Configuration Ratio of change in collector-emitter voltage (?V CE ) to the change in collector current (?I C ) at constant base curren
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