strontium-90 has a half-life of 28 days. a sample has initial mass 50 mg. find a formula for the mass
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- Half-life \( T = 28 \) days - Initial mass \( m_0 = 50 \) mg Show more…
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Strontium-90 has a half-life of 28 days. (a) A sample has an initial mass of 50 mg. Find the formula for the mass remaining after t days, y(t): 50 * (1/2)^(t/28) y(t) (b) Find the mass (in mg) remaining after 35 days. Round your answer to one decimal place: 21.0 mg (c) How long does it take (in days) for the sample to decay to a mass of 2 mg? Round your answer to the nearest day: 130 days
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Strontium-90 has a half-life of 28 days. (a) A sample has a mass of 50 mg initially. Find a formula for the mass remaining after t days. (b) Find the mass remaining after 40 days. (c) How long does it take the sample to decay to a mass of 2 mg? (d) Sketch the graph of the mass function.
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Strontium-90 has a half-life of 28 days. (a) A sample has initial mass $50 \mathrm{mg}$. Find a formula for the mass remaining after $t$ days. (b) Find the mass remaining after 40 days. (c) How long does it take the sample to decay to a mass of $2 \mathrm{mg}$ ? (d) Sketch the graph of the mass function.
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