The fundamental force that is the weakest of the four is
A. strong force.
B. weak force.
C. electromagnetic force.
D. gravitational force.
D. gravitational force.
Physics & Space Science
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What does better angular resolution mean?
a. astronomical objects look larger b. astronomical objects look smaller c. you can see more detail in images d. you can see fainter objects e. none of the above
Physics & Space Science
Earth's core is believed to be composed of
a. iron and nickel. b. silicate rocks. c. carbon and silicon. d. uranium and lead.
Physics & Space Science
The intensity of unpolarized light passing through a single sheet of polarizing material changes by a factor of:
a. 0.5. c. cos2 q. b. 1. d. cos q.
Physics & Space Science
In the closed universe model, the geometry of spacetime in two dimensions resembles the surface of a:
A) flat piece of paper. B) saddle. C) cylinder. D) sphere. E) pyramid.
Physics & Space Science