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jije1112
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Homework Statement
If a radioactive sample of 59Fe (t1/2= 44.496 d) has an activity of 1000 disintegrations per minute, what weight of 59Fe is present?
What is the weight of a radioactive sample with a given half-life and activity?
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AI Thread Summary
To determine the weight of a radioactive sample of 59Fe with a half-life of 44.496 days and an activity of 1000 disintegrations per minute, one must use the relationship between half-life, activity, and mass. The activity indicates the number of disintegrations occurring, which correlates to the amount of radioactive material present. A larger mass results in a higher activity rate, as more atoms are available to decay. Calculating the weight involves using the decay constant derived from the half-life and applying it to the activity formula. Understanding these relationships is crucial for solving the problem effectively.
If a radioactive sample of 59Fe (t1/2= 44.496 d) has an activity of 1000 disintegrations per minute, what weight of 59Fe is present?
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berkeman
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jije1112 said:Homework Statement
If a radioactive sample of 59Fe (t1/2= 44.496 d) has an activity of 1000 disintegrations per minute, what weight of 59Fe is present?
Homework Equations
Are you still working on the section of the Homework Help Template where you show your Attempt at a Solution?
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jije1112
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I do not know what to do with this Questionberkeman said:
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berkeman
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jije1112 said:
You are given the half-life and also how many disintegrations per minute are occurring with this sample. The more massive the sample, the more disintegrations per minute there will be...
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question.
Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point?
Lets call the point which connects the string and rod as P.
Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is
The second part of the problem is exactly why you get this affect.
And one more spoiler:
TL;DR Summary: Will motion in y direction eventually stop
If an object moves with initial velocity in both x and y direction and acceleration in only the x direction. If the angle of movement with the x axis will eventually become zero does that mean the object will eventually not move in the y direction.
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