The portion of the visible spectrum that appears brightest to the human eye is around 562 nm in wavelength, which corresponds to yellow-green. the speed of light is 3 × 108 m/s. what is the frequency of 562 nm light? answers

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.