What is the required actual mechanical advantage
An Industrial water shutoff valve is designed to operate with 30lbs of force and will encounter 200lbs of resistance force applied to a 1.5in diameter axle. What is the required actual mechanical advantage of the system?
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A variable force and appropriate energy transfers are applied to the piston so that the water temperature remains constant as the water expands to a final volume of 14.303 m3.
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During an AP, the membrane potential typically moves from -70mV to +20mV and back again. In a cell with 10um radius and 1uF/cm^2, how many charges need to move across the membrane (and back again) to get this 90 mV voltage fluctuation?
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