3 years ago

DESPERATE WILL GIVE BRAINLIST AND THANKS

Chemistry

1 answer:

irina [24]3 years ago

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anaphase

or if not

telophase

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What is the half life of an atom that goes from 16000 g to 125 g in 163.24 days.

Alenkinab [10]

Answer:

$23.32\ \text{days}$

Explanation:

N = Final mass of atom = 125 g

$N_0$ = Initial mass of atom = 16000 g

t = Time taken = 163.24 days

$t_{1/2}$ = Half life

We have the relation

$N=N_0\dfrac{1}{2}^{\dfrac{t}{t_{1/2}}}\\\Rightarrow 125=16000\times \dfrac{1}{2}^{\dfrac{163.24}{t_{1/2}}}\\\Rightarrow \dfrac{125}{16000}=\dfrac{1}{2}^{\dfrac{163.24}{t_{1/2}}}\\\Rightarrow \ln0.0078125=\dfrac{163.24}{t_{1/2}}\ln0.5\\\Rightarrow t_{1/2}=\dfrac{163.24\times\ln0.5}{\ln0.0078125}\\\Rightarrow t_{1/2}=23.32\ \text{days}$

The half life of the atom is $23.32\ \text{days}$ .

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3 years ago

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katrin2010 [14]

Answer:fixed and dilted

Explanation:But am pretty sure that right

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The radioactive decay of carbon-14 is first-order and the half-life is 5800 years. While a plant or animal is living, it has a c

Anestetic [448]

If the half life is 5800 years, and there was only 1/4 of the Carbon 14 left in the wood remains, then 1/2 of the 1/2 life or 1/4 is 2900 years so the total age of the wood should be 5800 + 2900 = 8700 years old. We found some ancient highly compressed and water logged wood branches in an old glacial lake in the Highland Valley of BC., Canada and the lake deposits were up to 40,000 yrs old or just past the limit of Carbon 14 dating.

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3 years ago

Water has a density of 1.0 g/mL. Which of these objects will float in water

Firdavs [7]

Answer:where did you get this

Explanation:

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Silver has a resistance of 0.0198 ohms. What voltage would produce a current of 100 amps? ______________

nekit [7.7K]

Explanation:

V=IR

r=0.0198

i=100

v=0.0198×100

=1.98 volts

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3 years ago