The mechanical advantage is equal to 10/4 or 2 1/2. As with the inclined plane, the mechanical advantage gained by using a wedge requires a corresponding increase in distance. T Fulcrum is between EF (effort) and RF (load)Effort moves farther than Resistance.
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How To Read a Pulse Oximeter: Heart and Pulse Rate. A portable pulse oximeter is a device that clips onto your finger and reads your heart rate as well as the percent of oxygen in your blood. It was developed as a way to detect hypoxia (a condition caused by insufficient oxygen).