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maparicio
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In air at 20 , sound travels at a constant speed of 344 . The light speed is equal to 299792458 . The light year is defined as the distance light travels in 1 year. Use this information to determine how many meters there are in 1 light year.
Also, How many meters does light travel in 1 nanosecond?
 2 years ago
 2 years ago
maparicio Group Title
In air at 20 , sound travels at a constant speed of 344 . The light speed is equal to 299792458 . The light year is defined as the distance light travels in 1 year. Use this information to determine how many meters there are in 1 light year. Also, How many meters does light travel in 1 nanosecond?
 2 years ago
 2 years ago

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3psilon Group TitleBest ResponseYou've already chosen the best response.1
Use dimensional analysis We'll call the speed of light \[3x10^{8}\] so.\[\frac{ 3x10^{8}meters }{ 1 \sec }*\frac{ 60 \sec }{ 1 \min} *\frac{ 60 \min }{ 1 hr }*\frac{ 24 hrs }{ 1 day }\]
 2 years ago

3psilon Group TitleBest ResponseYou've already chosen the best response.1
Every thing should cancel out but meters and days. Then just multiply by 365 days to get how many meters it travels in a year
 2 years ago

maparicio Group TitleBest ResponseYou've already chosen the best response.0
Thanks the answer is 9.46 x 10^15 m
 2 years ago

maparicio Group TitleBest ResponseYou've already chosen the best response.0
Do you know How many meters does light travel in 1 nanosecond?
 2 years ago
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