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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.
All the given four Laws may be written in one relation, PV = nRT =m/n RT This formula is known as deal gas equation. Where m = mass of the gas M = molecular mass of t
a metal wire 75.0 cm long and 0.130 cm in diameter stretches 0.0350 cm when a load of 8.00 kg is hung on its end. find the stress, the strain and the young''s modulud for the mater
A standing wave is described by the wave function where x and y are in meters and t is in seconds. (a) Prepare graphs showing y as a function of x for five instants: t = 0, 5 ms,
A 3Kg bar of aluminum has to be heated from 25 degrees Celsius to 75 degrees Celsius. how many calories are needed to achieve this temperature increase?
what is momentum ?
A thermodynamic process, in which the volume of gas always same is known as isochoric process. In this process, the work completed by the body is zero. Therefore from first law
Simultaneity principle The principle that all of the frames of reference will have invariant simultaneity; i.e., two events perceived as simultaneous (that is, having the simi
Explain header and stretcher. Header A brick laid with its length perpendicular to the direction of wall is known as a header. A course of bricks in which all the bricks a
In solids, heat is move from conduction. We will study conduction of heat energy by a solid bar in the following section. Given a solid bar of thickness and area of cross-sectio
With the help of a circuit diagram, explain how regenerative feedback is provided in an Hartley oscillator?
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