Hubble’s law expresses a relationship between __________

1. For any particular distance, which galaxy type moves away from us at the highest speed due to the expansion of the universe? Group of answer choices all galaxies irregular galaxies only spiral galaxies only elliptical galaxies only 2. Hubble’s law expresses a relationship between __________. Group of answer choices the distance of a galaxy and the speed at which it is moving away from us the recession velocity of a galaxy and the speed at which it is moving away from us Hubble’s constant and the recession velocity of a galaxy the distance of a star from the center of its galaxy and its orbital speed 3. Cepheids are a type of _____. Group of answer choices star galaxy gas cloud 4 The two properties of a star that affect its luminosity are its __________. Group of answer choices radius and surface temperature mass and distance mass and radius 5. In the context of distance measurement, a standard candle is __________. Group of answer choices an object whose luminosity can be measured, even if we do not know its distance an object whose luminosity can be calculated from its apparent brightness and distance an object whose apparent brightness can be measured

Answer

1. For any particular distance, which galaxy type moves away from us at the highest speed due to the expansion of the universe? Answer : all galaxies For any particular distance, all galaxies has been moves away from us at the highest speed due to the expansion of the universe 2. Hubble’s law expresses a relationship between __________. Answer : the distance of a galaxy and the speed at which it is moving away from us In the context of the Hubble’s law, it’s expresses the relationship between the distance of a galaxy and the speed at which it is moving away from us. This expression indicated the the Hubble’s law. 3. Cepheids are a type of _____. Answer : star Cepheids are a kind of throbbing variable stars. The Cepheid differs in range, and its luminosity is more prominent when its radius is bigger. 4. The two properties of a star that affect its luminosity are its __________. Answer : radius and surface temperature A star that has been affect of the stars luminosity are its radius and surface temperature. On this two properties of a star that’s affect the stars luminosity. 5. In the context of distance measurement, a standard candle is __________. Answer : an object whose luminosity can be measured, even if we do not know its distance

On the matter of distance measurement, a standard candle is an object whose luminosity can be measured, even if we do not know its distance.

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