A 100 gram aluminum container is at 
grams of water at 
is added to the aluminum container. What is the final temperature of the water and the aluminum? (specific heat of water
specific heat of aluminum 
A. 58.3
B. 63.6
C. 68.5
D. 73.1
E. 83.3
C. 68.5
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Photoelectric Effect: A metallic surface is illuminated with light of wavelength 400 nm. If the work function for this metal is 2.40 eV, what is the maximum kinetic energy of the ejected electrons, in electron-volts? (1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)
Fill in the blank(s) with the appropriate word(s).
If an electromagnetic wave has components Ey = E0 sin(kx - ?t) and Bz = B0 sin(kx - ?t), in what direction is it traveling?
A) -x B) +x C) +y D) -y E) +z
What is the approximate range in latitude over which sunspots appear?
What will be an ideal response?
Which of the following represents a departure from the philosophical materialism of Newtonian physics?
A) forces B) thermal energy C) the second law of thermodynamics D) sound waves E) electromagnetic fields