Redshift values of ____ to _____ are distances to when galaxies were growing and merging,
Fill in the blank(s) with correct word
2, 3
Physics & Space Science
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You hear a musician playing a series of notes of increasing frequency. As the frequency increases, the wave speed
A. decreases. B. stays the same. C. increases.
Physics & Space Science
Rank the degenerate pressures from least supportive to most supportive:
a. electron, neutron, black hole b. black hole, neutron, electron c. neutron, electron d. electron, neutron
Physics & Space Science
Which of the following is not a basic or fundamental force in nature?
A. Strong nuclear force B. Electromagnetic force C. Frictional force D. Gravitational force
Physics & Space Science
A dentist uses a concave mirror (focal length 2 cm) to examine some teeth. If the distance from the object to the mirror is 1 cm, what is the magnification of the tooth?
a. 6 b. 1 c. 4 d. 2 e. 1.5
Physics & Space Science