What is an electronic signal
2 answers:
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Answer:
Part a)
Part B)
Explanation:
Part A)
While escalator is moving up work done to move the person upwards is given as
here we know that
m = 63 kg
h = 4.4 m
now we have
Part B)
Work done while we move from up to down
So we have
so we have
After one half-life, 8 g of radioactive isotope will remain in the sample.
<h3>What is radioactivity?</h3>The act of producing radiation spontaneously is known as radioactivity. This is accomplished by an unstable atomic nucleus that want to give up some energy in order to move to a more stable form.
The following formula is used to compute the number of half lives elapsed:
Hence,8 gram of radioactive isotope remains in the sample after 1 half-life.
To learn more about the radioactivity, refer to the link;
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