You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind and you perceive the frequency as 1310 Hz. You are relieved that the police is in pursuit of a different speeder when they continue past you, but now you perceive the frequency as 1240 Hz. What is the frequency of the siren in the police car

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

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.