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Question Number 59704 by necx1 last updated on 13/May/19

$$Aspaceshipmovingtowardsyouat$$$$0.5cshinealightatyou.Atwhatspeed$$$$doyouseethelightapproaching?$$

Answered by MJS last updated on 13/May/19

$$1.0c$$

Commented by necx1 last updated on 13/May/19

$$pleseexplainsir$$

Commented by MJS last updated on 13/May/19

$$\mathrm{the}\mathrm{speed}\mathrm{of}\mathrm{light}\mathrm{is}\mathrm{constant},{\mathrm{that}}^{\prime }\mathrm{s}\mathrm{what}$$$$\mathrm{Einstein}\mathrm{showed}.$$

Commented by MJS last updated on 13/May/19

$$\mathrm{the}\mathrm{additional}\mathrm{energy}\mathrm{will}\mathrm{raise}\mathrm{the}\mathrm{frequency}$$$$\Rightarrow \mathrm{the}\mathrm{light}\mathrm{will}\mathrm{change}\mathrm{its}\mathrm{colour}\mathrm{towards}$$$$\mathrm{the}\mathrm{blue}\mathrm{end}\mathrm{of}\mathrm{the}\mathrm{spectrum}$$

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