Which statements identify evidence of continental drift? check all that apply. explorers noticed that the continents were far apart from one another. mountain ranges line up when some continents are placed side by side. the same animals and plants can currently be found in south america and antarctica. south africa was once covered by glaciers, according to geologic evidence. lakes stretch across continents when the continents are placed side by side. explorers and mapmakers noticed that the continents fit together like puzzle pieces.

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.