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Strike441 [17]
3 years ago
13

Strontium-147 cut into pieces what would be the half -life of each piece?

Geography
1 answer:
zalisa [80]3 years ago
5 0

Answer:

2.62 years

Explanation:

The half life of a material is the time taken for half of the number of radioactive atoms in a radioactive material to remain.

If a radioactive material is cut into pieces, each piece has the same half life as the whole material.

Hence, if Strontium-147 is cut into pieces, each piece will have a half life of 2.62 years, just as the whole material.

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An observer in Watertown New York would see the star Polaris at an altitude of approximately
Stella [2.4K]

Answer:

41.3°.

Explanation:

An observer in Watertown New York would see the star Polaris at an altitude of approximately about 41.3°. Those people who lives in north pole, the star Polaris present over their head because star Polaris is present in North pole so people of other regions can see them from different altitudes. The New York city also present from north pole so the person see the star Polaris from an altitude of 41.3°.

4 0
3 years ago
What was unusual about the 1986 volcano-related disaster near Lake Nyos in Cameroon? A. A volcanic eruption involved a lateral b
Grace [21]

The correct answer is - C. Volcanic derived carbon dioxide gas bubbled from the lake and suffocated people and animals nearby.

In the summer of 1986, more specifically on the August 21st, a big tragedy happened in Cameroon. The Lake Nyos, located in the northwestern part of the country experienced a limnic eruption. This eruption triggered the release of very large amounts of carbon dioxide from the lake. The exact amount of carbon dioxide that was released is debatable, and the general consensus is that it was between 100,000 and 300,000 tons of the gas, though there are suggestions that it was up to 1.6 million tons.

The gas spread around very quickly, and being heavier than the air it stuck very low. In a radius of around 25 km from the lake, lot of people and animals were suffocated. The estimates are that 1746 people died and around 3,500 livestock died, not even counting the damage that has been done to the wild animals.

7 0
3 years ago
Read 2 more answers
The author states that "Christianity and Islam share a fifteen-hundred-year history in Africa" – briefly describe what this hist
Dafna1 [17]

Answer:

Yes, they share the history.

Explanation:

Fifteen-hundred-year ago Christianity is the main religion of African people and with the invasion of Muslims on Africa and conquering many areas, many local people impress from Muslim's behavior and accepted Islam. Christianity was the religion of american people from a long time while it was the initial days of Islam so we can say that Christianity and Islam share a fifteen-hundred-year history in Africa.

7 0
3 years ago
What is an environment?
Veronika [31]
<span>the surroundings or conditions in which a person, animal, or plant lives or operates.</span>
7 0
3 years ago
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What is eclectic science?
kondaur [170]

Answer:

Explanation:

Eclecticism is a conceptual approach that does not hold rigidly to a single paradigm or set of assumptions, but instead draws upon multiple theories, styles, or ideas to gain complementary insights into a subject, or applies different theories in particular cases.

Hope it helps you!

5 0
2 years ago
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