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Physics ...

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Hi

Radioactive decay -

A radioactive nuclide has a decay constant of - 10^-6 s-1 what is its half life ?

I have come up with

is IN (2) / 0.000001 s-1 = 693147.18055

which i am having troube working into real figures

Can anyone help please .. thanks

  • Physics ... - ,

    .5=e^-kt=e^-1E-6t
    thalfffffffffffff=-ln.5/1E-6

    I agree with that answer, 693 thousand seconds, or about 8 days. Work it out exactly.

  • Physics ... - ,

    Thank you for your time ..

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