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@shortcake1970 do you know the definition of a light year?

A light year is the distance that light travels in one Earth year.

light travels at 3*10^8 m/s

Yes that's approximately the speed of light, as @VeritasVosLiberabit said.

so it seems the 2*10^8 is meant to throw you off because it is irrelevant to finding the distance

and the distance light travels in a year is 9.47 X 10^15 i have that much

it might be better to keep your calculations in MKS units unless told otherwise.

Alright @shortcake1970 now simply multiply that answer by 50.

so do I just multiply?

Haha that's what I said.

oops yup you just answered that

Thank you!

Welcome!

Need help with anything else or are you okay?

well I do have another questions I might need help with let me write it...

Sure

Are these questions you've tried yourself? It's important you try them yourself first.

once i know which formula i can work it out myself :)

Sorry I was away for a minute. Just give me second. I'm just in the middle of something.

ok i'm having a hard time typing the formula

delta t=delta t o /square root of 1-v^2/c^2

OK I'm back. Yes\[\Delta t =\frac{ \Delta t _{0} }{ \sqrt{1-\frac{ v ^{2} }{ c ^{2} }} }\]

.90 x 10^8 s

Give me a second to calculate it.

is the answer for the previous question 4.73 x 10^17?

It should be\[9.0\times10^{-9}\]

That exponent is negative 9

oh i see

Do you? Did you spot your error?

yes i spotted the error

Great. I have to go but is there anything else before I do?

I guess not. I might be back a little later. Bye.

thank you so much.