Multiple Choice
Dr.Smith believes that the Hubble constant is H₀ = 70 km/s/Mpc.Dr.Jones believes it is H₀ = 50 km/s/Mpc.Which statement below automatically follows?
A) Dr.Smith believes that the universe is expanding,but Dr.Jones does not.
B) Dr.Smith believes that the Andromeda Galaxy (a member of our Local Group) is moving away from us at a faster speed than Dr.Jones believes.
C) Dr.Smith believes that the universe is older than Dr.Jones believes.
D) Dr.Smith believes that the universe is younger than Dr.Jones believes.
E) Dr.Smith believes that the universe will someday stop expanding,while Dr.Jones believes it will expand forever.
Correct Answer:

Verified
Correct Answer:
Verified
Q64: Suppose we observe a Cepheid variable in
Q65: A standard candle is<br>A)a 7-cm-long wax candle.<br>B)another
Q66: What is the most accurate way to
Q67: Suppose that we suddenly discovered that all
Q68: Most large galaxies in the universe are<br>A)elliptical.<br>B)spiral
Q70: Recall that Hubble's law is written v
Q71: Which of the following types of galaxies
Q72: What makes white-dwarf supernovae good standard candles?<br>A)They
Q73: Although the entire universe may be much
Q74: What is the best way to determine