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Elenna [48]
3 years ago
7

What is a half-life?

Geography
2 answers:
Fofino [41]3 years ago
6 0
I'd go with option "C"
disa [49]3 years ago
3 0

it is the time taken for the radioactivity of a specified isotope to fall to half its original value.

was it worth it? XD

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Alexxandr [17]

Short Answer:

buoyancy

Long answer:

    An object submerged in water displaces water according to how much it weighs. In fact, the water will push upward against the object with a force equal to the weight of the water it displaces. For example, a bowling ball and a beach ball that are the same size will have the same volume. The bowling ball, however, is more massive and thus denser than the beach ball. In both cases, the water pushes up against the ball with a force equal to the weight of water it displaced. In the case of the bowling ball, it weighs more than the amount of water it displaced, so it sinks. The beach ball, however, displaces very little water and the air inside it is much lighter than the weight of the water it displaced, so it floats.When lifting something underwater, you have the help of water pushing the object upwards along with your own strength, which is why it's easier to pick up things underwater than on land.

Source:

https://www.wonderopolis.org/wonder/why-is-it-easier-to-lift-someone-in-water-than-on-land

7 0
3 years ago
An example of a block mountain in Jamaica is...?
Y_Kistochka [10]

A block mountain is a mountain that is formed by the fault blocks of rocks that are sometimes hundreds of kilometers. They are created by tectonic events. Where the large areas of bedrocks are disputed by the faults.

  • A blue mounting is a range of mountains in Jamaica.
  • These mountains are characterized by a uniform type of lithology. The se are forced by the lifting of the faults and an indicator of the external tectonic activity.

Hence the option A is correct.

Learn more about the block mountain in Jamaica

brainly.com/question/25875340

8 0
3 years ago
Read 2 more answers
What was the Chinese cultural revolution
klasskru [66]

Answer:

The Cultural Revolution, formally the Great Proletarian Cultural Revolution, was a sociopolitical movement in the People's Republic of China from 1966 until 1976. ... Mao launched the movement in May 1966, soon calling on young people to "bombard the headquarters" and proclaiming that "to rebel is justified".

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vodka [1.7K]

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jolli1 [7]
"<span>The Argentine economy was devastated by the end of 2001 due to multiple factors" is the best option from the list but it should be noted that they had economic problems for some time as well. </span>
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3 years ago
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