Which is better value? 5 kg of potatoes for $3.80 or 3 kg for $2.20
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Physics, 03.06.2021 20:20 victoriapellam04
Which is better value? 5 kg of potatoes for $3.80 or 3 kg for $2.20
Answers: 3
Physics, 22.06.2019 04:30
Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.
Answers: 2
Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
Answers: 1
Physics, 22.06.2019 19:00
The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
Answers: 1
Physics, 22.06.2019 20:30
Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?
Answers: 2
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