The polarization of the cell membrane of a skeletal muscle cell is accompanied by a transfer of charge down the electrochemical gradient. given that the membrane potential changes by roughly δvmem = 100 mv and the fact that the capacitance per unit area is c=1 μf/ cm2
calculate the net charge transfer in unit of electron charge (e = 1.6x10−19 c) (10 points). the approximation that muscle cell is considered as a cylinder with the diameter of 50μm and the length of 0.5 m.

Draw the lewis dot structure for each of the following polyatomic ions

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)