Afactory robot drops a 10 kg computer onto a conveyor belt running at 3.1 m/s. the materials are such that
? s = 0.50 and ? k = 0.30 between the belt and the computer. how far is the computer dragged before it is riding smoothly on the belt?
a) 0.98 m
b) 3.0 m
c) 1.6 m
d) 2.3 m

What is the rate of change in a objects position?

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.

The receptor cells that convert light energy into neural signals are called