An open, rigid-walled, cylindrical tank contains 4 ft3 of
water at 40∘F . Over a 24 hour period of time the water temperature varies from 40 to 90∘F.
Make use of the appropriate thermodynamic data, to determine how much the volume of the water will change. For a tank diameter of 2 ft, would the corresponding change in water depth be
very noticeable? Explain.
Answers: 1
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In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?
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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
An open, rigid-walled, cylindrical tank contains 4 ft3 of
water at 40∘F . Over a 24 hour perio...
water at 40∘F . Over a 24 hour perio...
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