Physics, 19.10.2019 06:10 bvolleyball9
What can a paleontologist tell from fossil footprints of a dinosaur
Answers: 2
Physics, 21.06.2019 16:00
Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?
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Physics, 22.06.2019 05:30
Blank liquids and gases exert a buoyant force on objects placed in them
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Physics, 22.06.2019 11:50
Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)
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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
What can a paleontologist tell from fossil footprints of a dinosaur...
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