Find the minimum electric current that when it passes through a coil of a motor, it produces a torque of 20 N. m. If you know that the number of turns of the coil is 200 turns, its cross-
sectional area is 300 cm- and the magnetic flux density is 0.4 tesla.

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

Explain what happens at the saturation point when adding salt to water at room temperature.

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.