An electric field is set up between two parallel plates, each of area 2.0 m2, by putting 1.0 ?C of charge on one plate and -1.0 ?C of charge on the other
The plates are separated by 4.0 mm with their centers opposite each other, and the charges are distributed uniformly over the surface of the plates. What is the magnitude of the electric field between the plates at a distance of 1.0 mm from the positive plate, but not near the edges of the plates? (?0 = 8.85 × 10-12 C2/N • m2)
A) 4.2 × 104 N/C
B) 1.4 × 104 N/C
C) 3.1 × 104 N/C
D) 0.00 N/C
E) 5.6 × 104 N/C
E
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Sodium's emission lines at 589.0 nm and 589.6 nm pass through a diffraction grating and form two m = +1 maxima on a viewing screen. For which situation would the spacing between the two lines increase?
a. The grating is exchanged for one having fewer lines per millimeter b. The grating is exchanged for one with twice the total number of lines. c. The maxima are viewed in second order. d. The intensity of the light is doubled.
How many molecules are there in 14 grams of nitrogen gas?
a. NA/2 b. NA c. 2 NA d. The answer is not given.
Describe the technique know as calorimetry
What will be an ideal response?
If the solubility of a compound is 30 grams per liter, how much solid is left undissolved if you mix 30 g of the compound in 0.33 L of solution?
A) 20 g B) 10 g C) 0 g D) 30 g E) 33 g