Dr. X claims that the Hubble constant is 20 km/s/million light-years while Dr. Y claims it is 24 km/s/million light-years. Which statement below automatically follows?
A) Dr. X concludes that the universe is expanding, but Dr. Y does not.
B) Dr. X will conclude that the Andromeda Galaxy (a member of our Local Group) is moving away from us at a slower speed than will Dr. Y.
C) Dr. X will conclude that the universe is older than will Dr. Y.
D) Dr. X believes that the universe will someday stop expanding, while Dr. Y believes it will expand forever.
E) Dr. X will conclude that the universe contains more mass than will Dr. Y.
C) Dr. X will conclude that the universe is older than will Dr. Y.
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The center of our galaxy lies in the direction of the constellation of
a. Ursa Minor. b. Ursa Major. c. Sagittarius. d. Orion. e. Monoceros.
It's cold! You are sitting on what appears to be an ice-covered world (water ice). The Sun is low on the horizon and circles the horizon about once every 24 hours
Despite the low Sun, you can almost "feel" the skin cancers appearing on your exposed face (because there is little ozone to protect you). Despite these discomforts, you are pleased to find that the air is quite satisfactory; oxygen seems plentiful, and you are able to breathe even without the life-support belt.
There is a superforce that separates into the electromagnetic, weak, and strong nuclear forces below a critical temperature
Indicate whether the statement is true or false
In the process of crystallization, the remaining magma becomes _______.
What will be an ideal response?