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maparicio
 3 years ago
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?
maparicio
 3 years ago
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?

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

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

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

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