Narrow, parallel, glowing gas-filled tubes in a variety of colors form block letters to spell out the name of a nightclub. Adjacent tubes are all 2.80 cm apart. The tubes forming one letter are filled with neon and radiate predominantly red light with a wavelength of 640 nm. For another letter, the tubes emit predominantly blue light at 440 nm. The pupil of a dark-adapted viewer’s eye is 5.20 mm in diameter. (a) Which color is easier to resolve? State how you decide. (b) If she is in a certain range of distances away, the viewer can resolve the separate tubes of one color but not the other. The viewer’s distance must be in what range for her to resolve the tubes of only one of these two colors?
Narrow, parallel, glowing gas-filled tubes in a variety of colors form block letters to spell out the name of a nightclub. Adjacent tubes are all 2.80 cm apart. The tubes forming one letter are filled with neon and radiate predominantly red light with a wavelength of 640 nm. For another letter, the tubes emit predominantly blue light at 440 nm. The pupil of a dark-adapted viewer’s eye is 5.20 mm in diameter. (a) Which color is easier to resolve? State how you decide. (b) If she is in a certain range of distances away, the viewer can resolve the separate tubes of one color but not the other. The viewer’s distance must be in what range for her to resolve the tubes of only one of these two colors?
Solution Summary: The author explains the formula of Rayleigh's criterion for overlap of two dots separated center to center by 2.00mm.
Narrow, parallel, glowing gas-filled tubes in a variety of colors form block letters to spell out the name of a nightclub. Adjacent tubes are all 2.80 cm apart. The tubes forming one letter are filled with neon and radiate predominantly red light with a wavelength of 640 nm. For another letter, the tubes emit predominantly blue light at 440 nm. The pupil of a dark-adapted viewer’s eye is 5.20 mm in diameter. (a) Which color is easier to resolve? State how you decide. (b) If she is in a certain range of distances away, the viewer can resolve the separate tubes of one color but not the other. The viewer’s distance must be in what range for her to resolve the tubes of only one of these two colors?
A certain brand of freezer is advertised to use 730 kW h of energy per year.
Part A
Assuming the freezer operates for 5 hours each day, how much power does it require while operating?
Express your answer in watts.
ΜΕ ΑΣΦ
?
P
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Part B
W
If the freezer keeps its interior at a temperature of -6.0° C in a 20.0° C room, what is its theoretical maximum
performance coefficient?
Enter your answer numerically.
K =
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Part C
What is the theoretical maximum amount of ice this freezer could make in an hour, starting with water at 20.0°C?
Express your answer in kilograms.
m =
Ο ΑΣΦ
kg
Describe the development of rational choice theory in sociology.
Please include
A-E please
Chapter 38 Solutions
Physics for Scientists and Engineers, Technology Update, Hybrid Edition (with Enhanced WebAssign Multi-Term LOE Printed Access Card for Physics)
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