3 years ago

Intentional lifestyle changes to reduce energy consumption

Physics

1 answer:

blsea [12.9K]3 years ago

3 0

I dont get what you are asking. Is this true or false? or do you want me to give you an answer?

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Answer:

Explanation:

Let the velocity of lander with respect to earth be v .

In relativistic mechanism the expression for relative velocity is

v_r = $\frac{v -u}{1-\frac{uv}{c^2}}$

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Substituting the values

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b )

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t = $\frac{t_0}{\sqrt{1-\frac{v^2}{c^2} }}$

Substituting v = .946c

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t = $\frac{.2}{\sqrt{1-\frac{0.946\times .946c^2}{c^2}}}$

.2 / √.1050

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distance to the Earth at the time of lander launch, as observed by the aliens will be .62 ly.

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