A waitress fills your water glass with ice water (containing many ice cubes) such that the liquid water is perfectly level with the rim of the glass. As the ice melts,
A) the liquid-water level remains flush with the rim of the glass.
B) the liquid water level rises, causing water to run down the outside of the glass.
C) the liquid-water level decreases.
A
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Diffraction Gratings: When a diffraction grating having 5000 lines/cmis illuminated by monochromatic light, the angle between the central maximum and the fourth order maximum is 47.2°. What is the wavelength of the light?
A. 138 nm B. 183 nm C. 367 nm D. 637 nm
Any indication of prehistoric life preserved in rock is called
a. a shale. b. a radionuclide. c. a fossil. d. none of these.
A magnifying glass uses a convex lens with a refractive power of 20 diopters. What is the angular magnification if the image is to be viewed by a relaxed eye with a near point of 25 cm?
A) 5.0 B) 3.0 C) 4.0 D) 1.0 E) 2.0
The mass of 1H is 1.007825 u and the mass of 1n is 1.008665 u. The mass of 12C is 12.000000 u. What is the total binding energy of 12C?
A) 7.7 MeV B) 92 MeV C) 0.099 MeV D) 46 MeV E) 15 MeV