The percentage of the orignal uranium that remains after two half-lives is 25%
<h3>Data obtained from the question </h3>
- Original amount (N₀) = 100%
- Number of half lives (n) = 2
- Percentage remainig (N) =?
<h3>How to determine the percentage remaining</h3>
N = N₀ / 2ⁿ
N = 100 / 2²
N = 100 / 4
N = 25%
Thus 25% of the original sample remains
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<span>Nuclei of atoms which make up the newborn baby were made in ancient stars.
Ancient stars exploded many years ago and this is the same nuclei where newborn babies are being made.</span>
Answer:
to get to the other side
Explanation:
why the fk else would the chicken cross the road
Answer;
Husk.
Whole-grain flour contains all parts of the grain with the exception of the husk.
Explanation;
Whole grain foods contains the following parts; Bran, Endosperm and Germ, originally present before processing.
Refined grains on the other hand are mainly composed of only endosperm portion of the grain. Milling process removes bran and some also removes germ, along with the majority of fiber, vitamins, minerals, antioxidants and phytochemicals.
60 centimeters (2 ft 0 in) to over 260 cm( 8 ft 6 in)