A dollar bill is about 15.5 cm long. If 6 trillion dollar bills were laid end to end around the Earth's Equator, how many times would they encircle the Earth? Take the radius of the Earth to be about 6378 km.
2007-08-31 12:28:16 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
take 6 trillion and multiply by .155 meters to get 930000000000m. Then find the circumfrence of the earth, take the radius, multiply by 1000, and multiply by 2pi to get 40074122.04 meters. Then you divide the first by the second to get 23206.996 times.
2007-08-31 12:32:35 · answer #1 · answered by peteryoung144 6 · 0⤊ 0⤋
Well, multiply the length of the dollar bill by 6 trillion and divide by 2.pi.r where r is the radius of the earth. Use a calculator to help you with the maths.
2007-08-31 19:35:35 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
6x10^12 is 6 trillion, and 15.5 is 0.155 meter.
6378x2x3.14=40000 km or 40,000,000m
so (6x10^12 X 0.155)/40,000,000= 2.3x10^4
2007-08-31 19:35:19 · answer #3 · answered by Zack C 3 · 0⤊ 0⤋
It's neither physics nor trigonometry. It's simple arithmetic. Engage your brain, crack the book and work it out.
2007-08-31 19:36:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋