What do the size and distribution of small scale temperature variations suggest about the geometry of the Universe?
What will be an ideal response?
Theory predicts that most of the irregularities in the hot gas of the big bang should be about one degree in diameter if the Universe is flat. If the Universe were open, the most common irregularities would be smaller. Careful measurements of the size of the irregularities in the cosmic background radiation show that the observations fit the theory very well for a flat Universe.
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_____ is proposed dark matter made up of particles other than protons and neutrons
A) Baryonic matter B) Biotic matter C) Nonbaryonic matter D) Abiotic matter
If Earth's axis had no tilt, would we still have seasons? Why or why not?
What will be an ideal response?
An alpha particle (6.70 × 10-27 kg, 3.2 × 10-19 Coulomb) travels at 0.965c. What is its: (a) rest energy (in eV)? (b) total energy (in eV)? (c) kinetic energy (in eV)?
What will be an ideal response?
The planet whose axis of rotation lies almost in its orbital plane is
a. Neptune. b. Uranus. c. Saturn. d. Jupiter.