AS 102
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1. We classify galaxies by: - ANSWER how they appear in the sky 2. Stars in elliptical galaxies have velocities that: - ANSWER are oriented in random directions 3. If you measure the average brightness and pulsation period of a Cepheid variable star, you can also determine its: - ANSWER Distance 4. An iron core cannot support a massive main-sequence star because: - ANSWER Iron cannot fuse to make heavier nuclei and produce energy 5. Type I and Type II supernovae are respectiv...
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1. We classify galaxies by: - ANSWER how they appear in the sky 2. Stars in elliptical galaxies have velocities that: - ANSWER are oriented in random directions 3. If you measure the average brightness and pulsation period of a Cepheid variable star, you can also determine its: - ANSWER Distance 4. An iron core cannot support a massive main-sequence star because: - ANSWER Iron cannot fuse to make heavier nuclei and produce energy 5. Type I and Type II supernovae are respectiv...