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Why is the Kinetic energy of the system minimum in the frame of the center of mass for any number of particlessolution) The kinetic energy of any entity depends on the reference frame in which it is measured. Though the total energy of an isolated system, i.e. one which energy can neither enter nor leave, does not change in whatever reference frame it is calculated. Therefore, the chemical energy converted to kinetic energy by a rocket engine is divided differently among the rocket ship and its exhaust stream depending upon the chosen reference frame. This is known as the Oberth effect. But the total energy of the system, including kinetic energy, fuel chemical energy, heat, etc., is conserved over time, regardless of the choice of reference frame. Different observers moving with dissimilar reference frames disagree on the value of this conserved energy.The kinetic energy of such systems depends on the choice of reference frame: the reference frame that gives the minimum value of that energy is the center of momentum frame, i.e. the reference frame in which the total momentum of the system is zero. This minimum kinetic energy contributes to the invariant mass of the system as a whole.
ZENER DIODE: It is a two terminal semiconductor junction device with a very sharp voltage breakdown at reverse bias applied. The device is utilized to give a voltage reference.
The nature of anode rays depends upon: (1) Nature of electrode (2) Nature of residual gas (3) Nature of discharge tube (4) All the above Ans:(2) Nature of residual
what is the formula of work done
The order of density in nucleus is: (1)10 8 kg/cc (2)10 -8 kg/ cc (3)10 - 9kg/cc (4)10 12 kg/cc Ans; (4)10 12 kg/cc
The following steps are taken in the manufacturing of a resistor: (1) PREPARATION OF SUBSTRATE: Substrate should hold the resistive element. It should be a good insula
Illustrate ‘tan A ‘and ‘tan B' positions of a deflection magnetometer. Illustrate the theory to calculate magnetic moment of a bar magnet and Horizontal component of the earths
What are polar molecules Polar molecules - molecules having of two or more atoms that are neutral but have a charge which is not distributed uniformly.
what is different between acid and base?
Equivalence principle: The fundamental postulate of A. Einstein's general theory of relativity, that posits acceleration is indistinguishable fundamentally from a gravitationa
why the direction of centripetal force isnot marked in diagram
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