A machine has an efficiency of 70%. How much work dose the machine do when 20,000 J of work is done on it

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

This is the substance(s) formed in a chemical reaction.

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.