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In Hubble's Law equation, there is a constant (Hubble's constant). What is that constant and in what unit is it expressed? What is a megaparsec?
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Q6: What is the way that angiosperms can
Q7: Why is the ozone hole located where
Q10: From a health standpoint, what is the
Q13: Why do larger stars have shorter life
Q27: From the perspective of Earth, how are
Q28: How is a molecule's geometry used to
Q28: What four aspects of photons are measured
Q42: Describe how a photovoltaic cell works.
Q45: A scientist who uses carbon-14 dating is