330 g of water at 55°C are poured into an 855 g aluminum container with an initial temperature of 10°C. The specific heat of aluminum is 900 J/(kg?K)
What is the final temperature of the system, assuming no heat is exchanged with the surroundings?
A)
28°C
B)
39°C
C)
31°C
D)
33°C
E)
35°C
B
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Describe an observation you will make (time of day/night, location in sky) and describe what you will see that will clearly demonstrate that your friend's idea cannot be correct.
A beam of white light of a certain frequency is incident on a metal surface. If the work function of this surface is 2.20 eV,
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All of the following criteria define a mineral except:
-It is organic. -It is naturally occurring. -It has a well-defined chemical composition. -It is inorganic. -It has an orderly internal structure.
Double-pane windows contain nitrogen rather than air to prevent
A) gas escape. B) thermal conduction. C) condensation. D) heat flow.