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A particular element has a half-life of 27 days After 54 days have elapsed how much of the radioactive material is left?
Wiki User
∙ 14y ago
1/4.
After 27 days, half of the material will have decayed. After another 27 days half of the remaining material will have decayed. Half of half is 1/4.
Wiki User
∙ 14y ago
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A particular element has a half life of 27 days after 54 days have elapsed how much of the radioactive material is left?
In one cycle, the material would be reduced to one half of the original, leaving one half of the material. In the second cycle (54/27 = 2), there would be 1/2 of that half, leaving 1/4 of the original material.
What is the meaning of elapsed?
Elapsed means: to slip or pass by: Thirty minutes elapsed before the performance began
The half-life of a certain radioactive material is 75 days An initial amount of the material has a mass of 381 kg Write an exponential function that models the decay of this material Find how much?
The generalized exponential half-life equation is ... AT = A0 2(-T/H) ... where A0 is the initial activity, AT is the final activity at time T, and H is the half-life in units of time T. Example using the specific question, for an elapsed time of 50 days, is ... A50 = (381) 2(-50/75) = 240
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time elapsed=final time taken - initial time taken
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time elapsed=final time taken - initial time taken
A particle element has a half-life of 27 days after 54 days have elapsed how much of the radioactive material is left is called?
54 days is 2x27. After one cycle of a half life (27 days), one-half of the substance would be left. After a second cycle of a half life (27 more days, for a total of 54), one-half of one-half is left, or one-fourth.
What does the phrase you are out of time mean?
It usually means that the amount of time that you had allotted to you for a particular task has elapsed. In other words, you have reached your deadline, and your time is up. You have run out of available time.
How do I write and essential questions about elapsed time?
elapsed time ~ n. measured time of an event
How do you calculate elapsed between am and pm?
I do it in two parts. I calculate how much time has elapsed between the AM and noon, then how much time has elapsed between noon and the PM, then add them together.
