Peter visits his grandmother every Saturday. The diagram below shows a graph that describes the distance he travels over time. Which of the following tables matches the information in the above graph? A. TIME (minutes) TOTAL DISTANCE (kilometers) 0 0 15 15 40 30 50 45 65 60 B. TIME (minutes) TOTAL DISTANCE (kilometers) 0 0 15 15 30 40 45 50 60 65 C. TIME (hours) TOTAL DISTANCE (miles) 0 0 15 15 30 40 45 50 60 65 D. TIME (minutes) TOTAL DISTANCE (kilometers) 0 0 15 15 30 25 45 10 60 15

Not all tiles will be usedidentify the element present in each star based on the gaps observed in wavelengths of its light refer to this table containing absorption wavelengths (in nm) of several different elements the table ishelium 447, 502 ,587 ,668carbon 427 ,515, 600 ,678sulfur 425, 565, 639, 675xenon 484, 590, 687calcium 429 ,527, 593, 645silver 421 ,521, 662

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

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.