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tensa zangetsu [6.8K]
3 years ago
15

Energy for muscle contraction is most directly supplied by

Biology
1 answer:
Alex73 [517]3 years ago
8 0
Blood cells is the answer
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Alternative energy sources come from renewable processes. true or false?
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True

Renewable energy processes present us with alternative sources of energy.The alternative energy sources applied to the energy sources other than remains in the form of fossil fuels. These energy sources are existing in the structure of solar power, tidal energy, geothermal power, electricity obtained from wind energy, and biomass.

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What are the benefits of stem cell research? Write about the main source of stem cells and the disease that can be treated by st
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Explanation:

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Which one of the following is an example of a prokaryote
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If 1/8 remains after 21 years, what is the half-life?
vagabundo [1.1K]

Half life formula

The number of unstable nuclei remaining after time t can be determined according to this equation:

N(t) = N(0) * 0.5^(t/T)

where:

N(t) is the remaining quantity of a substance after time t has elapsed.

N(0) is the initial quantity of this substance.

T is the half-life.

It is also possible to determine the remaining quantity of a substance using a few other parameters:

N(t) = N(0) * e^(-t/τ)

N(t) = N(0) * e^(-λt)

τ is the mean lifetime - the average amount of time a nucleus remains intact.

λ is the decay constant (rate of decay).

All three of the parameters characterizing a substance's radioactivity are related in the following way:

T = ln(2)/λ = ln(2)*τ

How to calculate the half life

Determine the initial amount of a substance. For example, N(0) = 2.5 kg.

Determine the final amount of a substance - for instance, N(t) = 2.1 kg.

Measure how long it took for that amount of material to decay. In our experiment, we observed that it took 5 minutes.

Input these values into our half life calculator. It will compute a result for you instantaneously - in this case, the half life is equal to 19.88 minutes.

If you are not certain that our calculator returned the correct result, you can always check it using the half life formula.

8 0
3 years ago
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