3. A woman drove her car from home to her daughter's school. The odometre on her dashboard says she travelled 4.5 km to do this.
1 answer:
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Answer:
The remaining percentage of drug concentration is about 88.7% 2 years after manufacture.
Explanation:
Recall the formula for the decay of a substance at an initial concentration at manufacture:
where k is the decay rate (in our case 0.06/year), and t is the elapsed time in years. Therefore, after 2 years since manufacture we have:
This in percent form is 88.7 %. That is, the remaining percentage of drug concentration is about 88.7% 2 years after manufacture.
Work = force x distance
the answer is 429 joules
good luck
the answer is 429 joules
good luck