1. can carbon-14 dating be used to measure the age of a rock?. Explain 2. If a h
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Question
1. can carbon-14 dating be used to measure the age of a rock?. Explain 2. If a heavy nucleus that is initially at rest undergoes alpha decay, which has more kinetic energy after the decay, the alpha particle or the daughter nucleus? 1. can carbon-14 dating be used to measure the age of a rock?. Explain 2. If a heavy nucleus that is initially at rest undergoes alpha decay, which has more kinetic energy after the decay, the alpha particle or the daughter nucleus? 2. If a heavy nucleus that is initially at rest undergoes alpha decay, which has more kinetic energy after the decay, the alpha particle or the daughter nucleus?Explanation / Answer
Here is the explanation :
1) Radio Carbon dating can be used to determine the actual age of a fossil or rock by accurately measuring the amount of a radio active substance within the rock or fossil item.
The amount of radio active substance (the amount of radio active particles) present in the rock or fossil is one element in finding its age.
The second element is that each radio active substance has a known frequency or known rate of delay (that is that each radio active substance decays at a known rate) and it is the rate of radio active decay that gives away the fossil or rocks age.
Carbon decays at a known or identifiable rate & thus the amount of carbon can give an identification of the items age.
Carbon is not the only radio active isotope that can be used in dating the age of an item. Its just one of the most common ones.
2) According law of conservation of momentum both(alfa partcile and nucleus) have same momentum.
But, KE = p^2/(2*m)
nucleus has more mass and alfa partcal has less mass. so alfa partilce has more kinetic enrgy.
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