The decay constant of neptunium-239 is 0.2975 d-1. What are its (a) half-life and (b) mean life?
What will be an ideal response?
(a) 2.330 d (b) 3.361 d
Physics & Space Science
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The first living organisms to develop photosynthesis were probably
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Physics & Space Science
To what three types of modern survivors can the masses of the protogalactic blobs be compared?
What will be an ideal response?
Physics & Space Science
What space shuttle put the hubble into orbit?
What will be an ideal response?
Physics & Space Science
Carbon-15 and nitrogen-15 are isotopes of the same element
What will be an ideal response?
Physics & Space Science