If the Hubble Constant is 70 km/sec/Mpc, the accelerating universe is about 10 billion yearsold.
Correct Answer:
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Q21: The Hubble time is expressed as:
A)H ×
Q22: In which of the following models will
Q23: The cosmic microwave background is the total
Q24: From the 1970s to the present, the
Q25: The presently accepted value of the Hubble
Q27: While a variety of factors can produce
Q28: What is the Big Bang?
A)an enormous explosion
Q29: Currently we think that matter accounts for
Q30: What do most scientists believe existed before
Q31: Astronomers know the universe is expanding because:
A)everything
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