Please clearly answer all parts of the question 1a) There are 106,000 aluminum c
ID: 291624 • Letter: P
Question
Please clearly answer all parts of the question
1a) There are 106,000 aluminum cans. This is the number used in the US every thirty seconds. Using dimensional analysis, calculate the number of cans used every year
1b) There are two million plastic bottles. This is the number used in the US every fifteen minutes. Using dimensional analysis, calculate the number of bottles used every year.
1c) There are one million plastic cups. This is the number used on airline flights in the US every six hours. Using dimensional analysis, calculate the number of cups used every year.
1d) There are 1.14 million brown paper bags. This is the number used in the US every hour. Using dimensional analysis, calculate the number of bags used every year.
1e) There are one hundred million toothpicks. This is equal to the number of trees cut in the US yearly to make the paper for junk mail. Using dimensional analysis, calculate the number of trees/toothpicks cut down in a day.
Explanation / Answer
1a)
aluminum cans = 106000
This is the number used in the US every thirty seconds.
30 sec = 106000 cans
1hr = 106000x 3600/(30) = 12720000 cans
the number of cans used every year = cans in 1 hr x 24 x 365 = 12720000 cans x 24 x 365 = 1.114272 x 1011 cans
1b)
plastic bottles = 2000000
This is the number used in the US every fifteen minutes
the number of bottles used in every 15 minutes = 2000000
15 min = 2000000 bottles
1 hr = 2000000 x 60 /(15) = 8000000 botlles
bottles in 1 year = bottles in 1 hr x 24 x 365 = 8000000 cans x 24 x 365 = 7.008 x 1010 bottles
1c)
plastic cups. = 100000
This is the number used on airline flights in the US every six hours.
number of cups used every year. =
6 hours = 100000
1 hr = 100000/6 flights
1 year = 100000 x 24 x 365 / 6 = 146000000 flites
1d)
brown paper bags.= 1140000
This is the number used in the US every hours
the number of bags used every year.
1 hr = 1140000 bags
bags in 1 tyear = 1140000 x 24 x 365 = 9986400000 bags
1e)
toothpicks. = 100000000
This is equal to the number of trees cut in the US yearly to make the paper for junk mail.
the number of trees/toothpicks cut down in a day.
1 year = 100000000 trees
1 day = 100000000/ (365)= 273972.6027 trees per day