When a current flows through an ionic liquid such as salty water, the moving charges are?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)