Physics, 03.11.2020 17:40 samymaria1344
A 0.040kg block of of copper at 95β is placed in 0.105kg of water at an unknown temperature. After equilibrium is reached, the final temperature is 24β. What is the initial temperature of the water?
Answers: 2
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Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).
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Which notation is used to represent an alpha particle? a. b. c. d.
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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
A 0.040kg block of of copper at 95β is placed in 0.105kg of water at an unknown temperature. After e...
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