According to the turn-off points of the oldest globular clusters, they are about
A) 4.5 billion years old.
B) 6.8 billion years old.
C) 10 billion years old.
D) 12 billion years old.
E) 16 billion years old.
D
Physics & Space Science
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A car drives over a hilltop that has a radius of curvature 0.120 km at the top of the hill. At what speed would the car be traveling when it tires just barely lose contact with the road when the car is at the top of the hill?
A) 45.5 m/s B) 41.8 m/s C) 34.3 m/s D) 22.2 m/s E) 27.6 m/s
Physics & Space Science
Radioactivity Basics: A ?+ particle is also known as
A. an electron. B. a positron. C. a helium nucleus. D. a high-energy photon.
Physics & Space Science
How many electrons does it take to fill the d subshell?
A) 10 B) 6 C) 14 D) 2 E) 4 F) 8
Physics & Space Science
Is gasahol a good idea? Explain
What will be an ideal response?
Physics & Space Science