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Problem: A spaceship is moving towards Earth at a speed of 0.4c. A source on the front of the ship emits light of wavelength 632 nm according to someone on the ship.
Part A: What frequency and color (blue, green, yellow, or red) are detected by someone on Earth watching the ship?
I need help to find what frequency and color (blue, green, yellow, or red) are detected.
question1a molecule of dna deoxyribonucleic acid is 2.35 microm long. the ends of the molecule become singly ionized --
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