An object travels a distance d with acceleration a over a period of time t according to the equation: d = at² After 2.3 seconds
with an acceleration of 9.8 m/s2, how far does an object travel (rounding the answer to two significant figures)?
1 answer:
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Answer:
The amount of caffeine left after one half life of 5 hours is 15 oz.
Explanation:
Half life is the time taken for a radioactive substance to degenerate or decay to half of its original size.
The half life of caffeine is 5 hours. So ingesting a 30 oz, this would be reduced to half of its size after the first 5 hours.
So that:
After one half life of 5 hours, the value of caffeine that would be left is;
= 15 oz
The amount of caffeine left after one half life of 5 hours is 15 oz.