The "flatness" problem arises because the curvature of space seems remarkably close to:

A) zero curvature, favoring a spherical cosmos.
B) exactly one.
C) .5, suggesting we are split between open and closed universes.
D) 2.73 K, in spite of the eddies and turbulence that led to galaxy formation.
E) infinity, suggesting an open universe is the only possible cosmology.


B

Physics & Space Science

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Solenoid: When you double the number of windings in an ideal solenoid while keeping all other parameters (radius, length and current) fixed, the magnetic field at the center of the solenoid will

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If a battleship sinks in a canal lock, the water level in the lock will

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