In a rocket a large volume of gases produced by the combustion of fuel is allowed to escape through its tail nozzles in the downward direction with the tremendous speed and makes the rocket to move upward. which of this principle follows A. Moment of inertia
B. conservation of momentum
C. Newton's first law of motion
D. Newton's law of gravitation
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Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material