Help! this chemistry is hard.
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Help! this chemistry is hard.

[From: ] [author: ] [Date: 13-01-23] [Hit: ]
3e10cm/s*1.42006e8s= 4.25736e18 cm-first convert the 4.5 years into days,4.X=C t =1.......
How many centimeters does light travel in 4.50 years (given that the velocity of light is 3.00 x 10^10 cm/s )?

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4.5 years * 365 days/1 year * 24hours/1day * 60 minutes/ 1hour * 60 seconds/1minute = 1.42006e8 s

3e10cm/s*1.42006e8s= 4.25736e18 cm

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first convert the 4.5 years into days, assuming that a year is 360 days
4.5x360=1620 days
Now convert these days to hours
1620 x 24=38880 hour
Convert those to seconds
38880x3600=139968000 seconds
Now the velocity of light is a uniform velocity so the distance traveled is
X=C t =1.39968 x 10^16 m

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How far does a car travel if its velocity is 100 mph and it travels for 3 hours? Exactly the same type of question you are asking. Take a hint
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