Explain the difference between a galaxy and a solar system
What will be an ideal response?
The Solar System is your local neighborhood, that is, the Sun (a star) and its planets, one planetary system. The Milky Way Galaxy contains our Solar System plus billions of other planetary systems.
Physics & Space Science
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Alpha particles
A. have no charge B. are the same as electrons C. are the same as helium ions
Physics & Space Science
Briefly describe how Hubble classified the galaxies visually
What will be an ideal response?
Physics & Space Science
In a blackbody, the energy of the oscillating atoms is quantized
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
How old is Earth, according to the vast majority of scientists?
A) a few thousand years B) about 100 billion years C) a few billion years D) about a billion years E) a few million years
Physics & Space Science