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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.
 one year ago
 one year 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.
 one year ago
 one year 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
 one year ago

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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