Half life is the time taken for a radioactive isotope to decay by half its original mass. In this case the half life of carbon-14 is 5.730 years.
Using the formula;
New mass = original mass × (1/2)^n; where n is the number of half lives (in this case n=1 )
New mass = 2 g × (1/2)^1
= 1 g
Therefore; the mass of carbon-14 that remains will be 1 g
Answer:
<u><em>The correct option is C) the moon takes the same time to rotate and revolve.</em></u>
Explanation:
Scientific experiments have concluded that it takes approximately 23 days for the moon to rotate and also it takes the same duration for the moon to revolve around the Earth. Due to this consistency, the moon appears to be still.
<em>Such synchronization results in the same face of the moon to be directed towards the Earth. Hence, the same craters of the moon will be observed by the scientist every day.</em>
<em></em>
Other options, like option D, is not correct because there will be craters on the other side of the moon too. But as we see the same side of the moon, hence we cannot see the craters present on the other side of the moon.
The answer to the molar mass of Ca(NO3)2 is gonna be C. 164.1 g/mol
Answer:
The answer is C.
"The atomic number and mass number."
Explanation:
Got it right on Edge!
Have a good day!
Answer:
It is commonly believed that the Catholic Church persecuted Galileo for abandoning ... Thus Galileo did not prove the theory by the Aristotelian standards of science in his day. ... If we believe Relativity, science never *can* disprove them. ... If you correctly report the findings of Fr. Spitzer, then he is wrong.
Explanation:
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