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Ghella [55]
3 years ago
8

In 2015, only 9% of the electricity used in the U. S. was generated from nuclear power. What are some of the costs associated wi

th using nuclear power instead of traditional energy sources such as fossil fuels? All BUT ONE would be considered a cost.
A)The potential of nuclear disasters and radioactive incidents such as the Daiichi nuclear disaster.
B) Nuclear power plants can work with renewable energy sources such as solar and wind power when they are not available.
C) The nuclear fission reaction is able to produce cheap electricity but also dangerous radioactive waste that is hard and expensive to dispose.
D) Uranium and plutonium are finite sources of energy. With the current level of consumption in the nuclear power plants uranium will run out in eighty years.
Chemistry
1 answer:
Step2247 [10]3 years ago
3 0
ACD are costs whereas B is a benefit
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2 years ago
A fossil is found to have a 14 C 14C level of 70.0 70.0 % compared to living organisms. How old is the fossil?
natulia [17]

Answer:

The age of the fossil be 2.1987\times 10^{4} years.

Explanation:

Formula used :

N=N_o\times e^{-\lambda t}\\\\\lambda =\frac{0.693}{t_{\frac{1}{2}}}

where,

N_o = initial mass of isotope  C-14 = x

N = mass of the parent isotope left after the time, (t)  = 70.0% of x=0.07x

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\lambda = rate constant

Let the age of the fossil be t.

Now put all the given values in this formula, we get  t :

0.07x=x\times e^{-(\frac{0.693}{5730 years})\times t}

t=2.1987\times 10^{4} years

The age of the fossil be 2.1987\times 10^{4} years.

8 0
3 years ago
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Explanation:

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