If a 50 N block experiences a force of kinetic friction of 11 N from the surface of a table, then what is the coefficient of
kinetic friction () between the block and the table?

Which is not true about oxygen-17 and oxygen-18?

Convection currents are caused by differences in what two things?

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.