A toy is 14 cm in front of a convex spherical mirror. If the image of the toy is 5.8 cm behind the mirror, what is the focal length of the mirror?
A) -4.1 cm
B) +20 cm
C) -9.9 cm
D) -20 cm
E) +9.9 cm
C
Physics & Space Science
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A supernova can occur when:
a) a massive star is on the Main Sequence b) the center of a 1 solar mass star stops burning Hydrogen in its core c) material from a companion star falls onto a white dwarf d) material from a red supergiant falls into a black hole e) a low mass star is on the Main Sequence
Physics & Space Science
What are the components of an atom? (3)
What will be an ideal response?
Physics & Space Science
Which simplest alcohol is used in race cars as fuel?
a. 2-Propanol b. Ethylene glycol c. Ethanol d. Methanol
Physics & Space Science
Springs: An ideal spring has a spring constant (force constant) of 60 N/m. How much energy does it store when it is stretched by 1.0 cm?
A. 0.0030 J B. 0.30 J C. 60 J D. 600 J
Physics & Space Science