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Jacob Riis, in 1890

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According to how the other half lives building in slums did not have much light and were therefore?

Dangerous


After two half-lives, how much of the original material has decayed?

After two half-lives, 75% of the original material has decayed.


How much sample of 10g of tritium with half life of 12.32 after 2 half lives?

After 2 half-lives (two half-lives of tritium is 12.32 x 2 = 24.64 years), the initial 10g sample of tritium would have decayed by half to 5g.


How much cesium is left after 4 half-lives?

1/16 of the original sample of any unstable element remains after 4 half lives.


How much thorium-234 will remain after 2 half lives?

After 2 half-lives, 25% of the original amount of thorium-234 will remain. This is because half of the substance decays in each half-life period.


How much would half a penny be worth now?

it depends on where it came from, and how old it is.


A sample of a radioactive element has a mass of 80 g. How much parent and daughter materials are in the sample after two half-lives?

A half-life is the amount of time it takes for half of the material to decay. So if you started with 80g After 1 half-life you would have 40 g After 2 half-lives you would have 20 g After three half-lives you would have 10 g


How much of America lives in suburbs?

Today, about half of all Americans live in suburbs.


How much of an 8 gram sample is left after 3 half lives?

2.66666666666667 grams


What According to How the Other Half Lives buildings in slums did not have much light and were therefore?

According to "How the Other Half Lives," buildings in slums lacked sufficient natural light due to overcrowding and narrow living spaces. This lack of light not only impacted the living conditions and health of residents but also contributed to the spread of disease and unsanitary living conditions.


How much thorium in grams is there in 2 half lives?

To calculate the amount of thorium remaining after 2 half-lives, you use the formula: amount = initial amount * (1/2)^n, where n is the number of half-lives. If we assume the initial amount is 1 gram, after 2 half-lives, there would be 0.25 grams of thorium remaining.


How much time has passed if carbon -14 has a half life of 5730 years and 2 half lives have passed?

By observing how much decays in a few days, or in a year, and extrapolating.