Physics, 08.11.2019 00:31 elizabethhubbe
•• bio a typical cell has a membrane potential of −70 mv, meaning that the potential inside the cell is 70 mv c 1 = 10 μ f c 2 = 20 μ f 1 2 c 1 2 v = 0 v r 1 = 0.50 mm r 2 = 3.0 mm not for distribution in problems 75 through 77 you are given the equation(s) used to solve a problem. for each of these, you are to a. write a realistic problem for which this is the correct equation(s). b. finish the solution of the problem. 75. where a is a constant with units of v/m 76. 77. challenge problems less than the potential outside due to a layer of negative charge on the inner surface of the cell wall and a layer of positive charge on the outer surface. this effectively makes the cell wall a charged capacitor. because a cell’s diameter is much larger than the wall thickness, it is reasonable to ignore the curvature of the cell and think of it as a parallel-plate capacitor. how much energy is stored in the electric field of a 50-μm-diameter cell with a 7.0-nm-thick cell wall whose dielectric constant is 9.0?
Answers: 1
Physics, 22.06.2019 19:50
Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)
Answers: 1
Physics, 23.06.2019 03:00
Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?
Answers: 2
Physics, 23.06.2019 20:30
Which of the following reactions is a synthesis reaction? n2 + 3h2 → 2nh3 mgi2 + br2 → mgbr2 + i2 kclo3 → kcl + o2 hcl + naoh → nacl + h2o
Answers: 2
•• bio a typical cell has a membrane potential of −70 mv, meaning that the potential inside the cell...
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