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Unformatted text preview: n will the egg’s temperature be 36 0 C?
Assume Newton’s Law of Cooling.
4. A cup of boiling water 100 0 C is placed outside. One minute later the temperature of
the water is 70 0 C and after another minute, its temperature is 49 0 C. What is the outside
temperature (the medium)?
5. The half life of a radioactive substance is about 300 years. In how many years will
only one fourth of the original amount remain? 6. Find the half life of a radioactive substance if after 60 days, 75% of the original
amount has disintegrated.
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- Fall '10