The membrane potential typically moves
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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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?
Two slender rods of negligible weight are pin-connected at A and attached to the 18-lb block B and the 80-lb block C as shown. The coefficient of static friction is 0.55 between all surfaces of contact. Determine
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Consider some hypothetical X+ - Y - ion pair for which the equilibrium interionic spacing and bonding energy values are 0.38 nm and - 6.22 eV respectively.
A point charge Q is located at (0,-4,0) while a 10nC charge is uniformly distributed along a semicircular ring as shown in Fig. 4.25 (semi circle in the xy plane from x= -2 to x =2, y=2) Find the value of Q such that E(0,0,0) =0.
A simple U-tube manometer is installed across an orifice meter. the manometer is filled with mercury(specific gravity 13.6), and the liquid above the mercury is carbon tetrachloride (specific gravity 1.6).
Rayleigh Scattering. Calculate the % increase is attenuation due to Rayleigh scattering exhibited by light having a free-space wavelength 1535 nm as compared to light having a free space wavelength 1550 nm. Provide your answer in units of [%]
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