A 0.1 kg mouse is running along a countertop. The mouse has 1 J of gravitational potential energy. A 5 kg cat is sitting on top of a cabinet, stalking the mouse. The cat has 100 J of gravitational potential energy. A 10 kg dog is on the floor, barking at the cat. The dog has 0 J of gravitational potential energy. The acceleration due to gravity (g) is 10 m/s2. Order (or list) the animals (mouse, cat, and dog) according to their height, starting with the animal that has the most height and ending with the animal that has the least height. Be sure to use evidence from the first paragraph and reasoning to justify your answer/claim.

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.