Which of the following agrees with a no-center, no-edge Universe?

a. a flat geometry b. a positive-curved geometry
c. a negative-curved geometry d. All of the other choices are correct.


d

Physics & Space Science

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Nearly all life on Earth passes on its heredity using

A) lipids B) RNA C) DNA D) proteins

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What were the two primary courses of heating that let the Earth differentiate?

What will be an ideal response?

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The Sun will finally become a

a. brown dwarf. b. neutron star. c. black hole. d. white dwarf.

Physics & Space Science

A string with a fixed frequency vibrator at one end is subjected to varying tensions. When the tension is 20 N, a resonance with 3 antinodes results. What tension would cause a resonance with 2 antinodes in this string?

a. 30 N b. 45 N c. 80 N d. 8.9 N e. 13 N

Physics & Space Science