An object that is 10.0 cm tall is placed 37.0 cm in front of a concave mirror of focal length 18.5 cm. How tall is the image?
A) 2.5 cm
B) 5.0 cm
C) 7.5 cm
D) 20.0 cm
E) 10.0 cm
E
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These diagrams represent four possible models for the universe. Which model presumes the existence of some type of dark energy in the universe?
A) accelerating universe B) coasting universe C) critical universe D) recollapsing universe E) All four models assume the existence of dark energy.
Strengthening by cooling a solid solution and forming small particles of a new phase is called _________hardening
Fill in the blank(s) with the appropriate word(s).
Briefly describe two key pieces of evidence that support the Big Bang theory.
What will be an ideal response?
The focal length of the objective of a telescope is much longer than the focal length of the eyepiece
Indicate whether the statement is true or false