If the half life is 5800 years, and there was only 1/4 of the Carbon 14 left in the wood remains, then 1/2 of the 1/2 life or 1/4 is 2900 years so the total age of the wood should be 5800 + 2900 = 8700 years old. We found some ancient highly compressed and water logged wood branches in an old glacial lake in the Highland Valley of BC., Canada and the lake deposits were up to 40,000 yrs old or just past the limit of Carbon 14 dating.
Answer:
wavelength.. meter
frequency.... Hertz (cycle per second)
energy.... Joule
<u>Conversion Factors:</u>
1.61 km = 1 mile
60 sec = 1 min
60 min = 1 hour
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Use dimensional analysis to solve.
× 
× 
× 
× 
= 36 miles/hour
If done properly, you should be left with the units <em>miles/hour</em>
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Answer:
the answer is FALSE it is less than 60% not more
