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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.
What are The Stars? The star is made of dust and gas in space. Essentially it has many stages they are 1.black hole 2.nuetron star 3.supernova 4.red giant stage
a particle of xkg pended by two light inextensible strings of AB and BC of lengths 8cm and 6cm respectively with the mass x attached to B. The end A and C are fixed at the same and
The rate of modification of thermo emf with the change in the temperature of the hot junction is known as thermoelectric power.
Consider a bowling ball as well as a Ping Pong ball each moving along a straight line path at constant velocity. Which has the higher magnitude of momentum? Answer: One req
A dartboard with a mass of 2.20 kg is suspended from the ceiling such that it is initially at rest. A 0.030-kg dart is thrown at the dartboard with a velocity of 1.3 m/s. A
(i) These are positive ions having similar mass if the experimental gas does not have isotopes. However if the gas has substances then positive pulses are group of positive ions ha
Kirkwood gaps (Kirkwood): Gaps in the asteroid belt, caused through resonance effects from Jupiter. Identical gaps exist in Saturn's rings, because of the resonance effects of
A boy throws a ball of mass 20 kg vertically upwards.It raises to a maximum height of 100 m.At what height will the kinetic energy be reduced to 70%?
how to find magnetic moment and the principle behind the magnetometer?
Ripple tank The concept of reflection and refraction of light waves can be understood by the study of reflection and refraction of waves on water. The water waves travel
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