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anonymous
 one year ago
Dimensional Analysis question
A very large unit of measurement is the zettameter (zm). 1 zm = 1021 m, but astronomers measures distances in even bigger units called astronomical units (the au). One au is defined to be approximately 107 miles (the average distance between the center of the earth and the center of the sun). An even bigger unit is called the parsec, which is equal to about 2x105 au. When astronomers talk about intergalactic space however it’s even more convenient to use units of kiloparsecs. Given that 1.6 km = 1 mile, about how many kiloparsecs are there in a zettameter?
anonymous
 one year ago
Dimensional Analysis question A very large unit of measurement is the zettameter (zm). 1 zm = 1021 m, but astronomers measures distances in even bigger units called astronomical units (the au). One au is defined to be approximately 107 miles (the average distance between the center of the earth and the center of the sun). An even bigger unit is called the parsec, which is equal to about 2x105 au. When astronomers talk about intergalactic space however it’s even more convenient to use units of kiloparsecs. Given that 1.6 km = 1 mile, about how many kiloparsecs are there in a zettameter?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you understand some of it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got to go in 17min, so the more responsive you are, the faster we finish.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes, the work I've came up with so far is, 10^18 km x (1mi/1.6 km) x (1au/10^7 mi ) x )1 Kiloparsec/2x10^8 au)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got 3 x 10^18 Kiloparsecs, but the answer key says the answer is 1/3 x 10^3 Kiloparsecs I don't know what I'm doing wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the conversions should be 1 zm = 10^21 m 1 au = 10^7 mi 1 parsec = 2x10^5 au

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and so 1 kiloparsec= 2x10^8 au

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01000 parsec=1 parsec 1 parsec=2,00,000Au 1Au=107 miles 1zm=1021m

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But after calculating, my final answer is different from the answer in the answer key

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0one zm has 1021m, so lets start with that.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its meant to be 10^21

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I converted 10^21 m to km, which is 10^18 km

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 1021m }{ 1 } \times \frac{ 0.001km }{ 1m } \times \frac{ 1mile }{ 1.6km } \times \frac{ 1Au }{ 107miles } \times \frac{ 1 parsec }{ 2\times10^5 Au } \times \frac{ 0.001 kiloparsec }{ 1 parsec }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ahh i forgot to convert parsec to kiloparsec thanks so much!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ah, nice job attempting though!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have to go now. If you have any questions in 2 hours, I can help.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0alright thanks so much
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