Physics, 30.11.2021 20:00 ahmedeldyame
4 In the figure, a mass m = 6.71 kg oscillates in a vertical circle at the end of a chord of negligible mass and length L = 2.36 m. The mass is released from rest from a horizontal position. What is the magnitude of the angular momentum (in kg • m2 / s) at the lowest point of its path with respect to the axis perpendicular to the vertical circle that passes through its center?
Answers: 3
Physics, 21.06.2019 22:00, mattydoug4818
What type of light does this light bulb produce most (i. e. at what wavelength does the spectrum have maximum intensity)?
Answers: 3
Physics, 22.06.2019 14:20, timothyashburn8
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 15:50, shaylawymannnnn
Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air
Answers: 3
4 In the figure, a mass m = 6.71 kg oscillates in a vertical circle at the end of a chord of negligi...
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