The time it takes for 1g of strontium-90 to decay to 250 mg is; 57.6 years
<h3>What is the half life of an element?</h3>
The formula for half life is;
A(t) = A₀ * (¹/₂)^(t/t_1/2)
Where;
A(t) is amount left after t years
A₀ the initial quantity of the substance that will undergo decay;
t_1/2 is the half-life of the decaying quantity.
We are given;
t_1/2 = 28.8 years
A₀ = 1 g
A(t) = 250 mg = 0.25 g
Thus;
0.25 = 1 * (¹/₂)^(t/28.8)
log 0.25 = (t/28.8) log (1/2)
-0.60206 = (t/28.8) * -0.3010
t = 2 * 28.8
t = 57.6 years
Read more about half life at; brainly.com/question/11152793
Answer:
Behavioral theories suggest that personality is a result of interaction between the individual and the environment.
Explanation:
Federalism is the division of power between states and the federal government.
Federal law preempts state law. This is due to the National Supremacy Clause in Article 6 of the U.S. Constitution.
It is crucial that healthcare institutions foster a workplace that is culturally competent. It implies that the traditions and beliefs of the patient should be respected. Fadi's rights are being violated because he had the ability to select his own food.
<h3>What are
Fadi rights?</h3>
Under the Fadi rights, it is not allowed to serve any kind of food that that does not contain pork, this is an alternative used when there is no pork in the given menu.
Healthcare workers should appreciate and honour his freedom to choose his meal or dinner.
Thus, It is crucial that healthcare institutions foster a workplace that is culturally competent.
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