It is the scientific study of human society and social relationships. It's also the subject within the field of social science, such as economics or politics. Hope this helps you!
I believe it the answer is B. Men made the tools and hunted for food. I hope this helped.
Americium-241 undergoes fission to produce three neutrons per fission event. a change occurred that caused the rate of fission to increase. what will be effective at achieving a critial mass is "Remove a deflective shield surrounding the sample."Option A. This is further explained below.
<h3>What is
Americium-241 ?</h3>
Generally, Americium-241 is simply defined as a radioactive isotope. Chemical symbol Am stands for a man-made radioactive metal that is solid at room temperature.
In conclusion, The fission of Americium-241 produces three neutrons each time. The rate of fission increased as a result of a modification. removing a deflective barrier around the sample will be beneficial in reaching a critial mass.
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<span>C. the rarefaction and the following compression</span><span>
Errors can come from various sources: the obtainer of the data, the measuring instrument, the setting and etc. Errors are what makes your measurement invalid and unreliable. There are two types of error which is called the systematic error and the random error. Each error has different sources. Words that were mentioned –invalid and unreliable are very important key aspects to determine that your measure is truly accurate and consistent. Some would recommend using the mean method, doing three trials in measuring and getting their mean, in response to this problem.
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Answer:
A strong federal government
Explanation:
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