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let a hemisphere of radium

let a hemisphere of radium 5 be cut by a plane parallel to the base of the hemisphere thus forming a segment of height 2. find
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2. asked by Oswaldo
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Radium is a member of the alkaline earth family. In addition to being a part of this family, what is another property of radium
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A radium-226 sample initially contains 0.112mol. How much radium-226 is left in the sample after 6400 years. The half-life of
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2. asked by Gaby
3. 1,147 views
which hemisphere on Earth has the most land mass?(1 point)Responses northwestern hemisphere northwestern hemisphere southwestern
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2. asked by opal
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In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of
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2. asked by Kate
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In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of
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2. asked by Kate
3. 556 views
Radium-223 has a half-life of 11.4 days.Approximately how long would it take for the activity of a sample of Radium-223 to
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2. asked by Michelle
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What are some things that are in the US that use or need radium to operate?Radium has very few commercial uses these days, it
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2. asked by Lanna
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please help me ...Experiments show that radium at rate proportional to the amount of radium present at the moment . if half life
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2. asked by NOEL
3. 660 views
please help me with this chemistry problem.Half-Life A radium-226 sample initially contains 0.112 mol. How much radium-226 is
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2. asked by shylo
3. 839 views