A light wave from a star has a frequency of 6.67 * 1014 Hz and a wavelength of 4.50 x 10‐⁷m. The star is 4.00¹⁶ m away from Earth. Calculate the time it takes light from the star to reach the Earth
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wavelength of 4.50 x 10‐⁷m. The star is 4.00¹⁶ m away from Earth. Calculate the time it takes light from the star to reach the Earth.
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