What speed is the galaxy receding

Reference no: EM13700534

Solve the given problem:

Problem: Wavelengths of light from a distant galaxy are found to be 0.46% longer than the corresponding wavelengths measured in a terrestrial laboratory.

Part A: What speed is the galaxy receding?

I've been having quite a bit of trouble understanding this problem, Thank you so much for your help. Thanks.

Reference no: EM13700534

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