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ChrisV
Group Title
The distance from Earth to the Moon is approximately 240,000 mi.
The speed of light is 3.00 * 10^8 m/s. How long does it take for light to travel from Earth to the Moon and back again?
Please Show work.
 2 years ago
 2 years ago
ChrisV Group Title
The distance from Earth to the Moon is approximately 240,000 mi. The speed of light is 3.00 * 10^8 m/s. How long does it take for light to travel from Earth to the Moon and back again? Please Show work.
 2 years ago
 2 years ago

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HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
time from the earth to the moon = 240000m /(3.00*10^8)m/s time = .0008s therefore to the moon and back = .0016s
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
understand?
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
well its miles to meters
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
so first have to convert
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
oh ok ill fix it then thx
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
1 mi = 1609.34 m
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
but i do understand what you did and thanks
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
this dimensional analysis stuff does not agree with me at times lol
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
ok then make the correction and it'll look like this time = 240000*1609.34/(3*10^8)
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
haha kk :)
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
n of course multiply the answer by 2
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
you could just begin with 480000 right?
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
yea u could just because its doesnt throw off the working
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
480000 mi * 1609.34m/mi * s/300000000
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
300000000 m oops
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
if this is home work then you shouldnt multiply by 2 first actually cause yes you'll get the rigt answer but when u write ur statements u'll have to explain y u muliplied by 2 n it makes more sense to do it after
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
i still get the wrong answer i think >.< i get 2.57 s
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
yea that is the correct answer
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
(4800000 * 1609.34)/300000000 = 2.57s
 2 years ago

ChrisV Group TitleBest ResponseYou've already chosen the best response.0
k thanks a ton
 2 years ago

HawkCrimson Group TitleBest ResponseYou've already chosen the best response.1
sure thing :)
 2 years ago
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