A model of a red blood cell portrays the cell as a spherical capacitor, a positively...
A model of a red blood cell portrays the cell as a spherical capacitor, a positively charged liquid sphere of surface area A separated from the surrounding negatively charged fluid by a membrane of thickness t. Tiny electrodes introduced into the interior of the cell show a potential difference of 100 mV across the membrane. The membrane's thickness is estimated to be 95 nm and has a dielectric constant of 5.00 (a) If an average red blood cell has a...
A model of a red blood cell portrays the cell as a spherical capacitor, a positively charged liquid sphere of surface area A separated from the surrounding negatively charged fluid by a membrane of thickness t. Tiny electrodes introduced into the interior of the cell show a potential difference of 100 mV across the membrane. The membrane's thickness is estimated to be 104 nm and has a dielectric constant of 5.00. (a) If an average red blood cell has a...
A model of a red blood cell portrays the cell as a spherical capacitor, a positively charged liquid sphere of surface area A separated from the surrounding negatively charged fluid by a membrane of thickness t. Tiny electrodes introduced into the interior of the cell show a potential difference of 100 mV across the membrane. The membrane's thickness is estimated to be 96 nm and has a dielectric constant of 5.00. (a) If an average red blood cell has a...
Model a red blood cell as a spherical capacitor. The radius of a blood cell is about 6.00x10-6 m and the lipid membrane surrounding the cell is 0.100x10-6 m has a a) Calculate the capacitance of the cell b) Find the charge on the cell surface for a potential difference of 100 mV across c constant of 5.00. membrane, assuming that the interior of the cell has an equal opposite charge Find the number of hydrogen ions (H) that could...
Suppose the conducting spherical shell of the figure below carries a charge of 3.50 nC and that a charge of -1.70 nC is at the center of the sphere. If a-1.60 m and b 2.30 m, find the electric field at the following. Gaussian Caussian surface surface (a) r = 1.50 m Your response differs from the correct answer by more than 10%. Double check your calculations. NC (b) r 2.20 m N/C (c) r 2.50 m. Your response differs...
Part A Assume that a red blood cell is spherical with a radius of 3.6 x 10-ºm and with wall thickness of 8.6 x 10 m. The dielectric constant of the membrane is about 5.0. The potential difference across the membrane is 0.080 V Assuming the cell is a parallel plate capacitor, estimate the capacitance of the cell. Express your answer with the appropriate units. C= Value Units Submit Request Answer Part B Determine the positive charge on the outside...
Air is blown into a spherical balloon so that, when its radius is 6.60 cm, its radius is increasing at the rate 0.900 cm/s. (a) Find the rate at which the volume of the balloon is increasing. 164 Your response differs from the correct answer by more than 10%. Double check your calculations. cm/s (b) If this volume flow rate of air entering the balloon is constant, at what rate will the radius be increasing when the radius is 12.50...
A spherical balloon with a radius of 10.6 cm is filled with oxygen gas at atmospheric pressure and at a temperature of 13.4°C (a) What is the number of molecules of oxygen in the balloon? 1.28e23 molecules (b) What is the average kinetic energy of oxygen in the balloon? 2.8e-21 Your response differs from the correct answer by more than 10%. Double check your calculations. (c) What is the rms speed of oxygen in the balloon? 472.47 m/s
suppose the conducting spherical shell in the figure below carries a charge of 2.80 nC and that a charge of-1.80 nC is at the center of the sphere. If a = 1.80 m and b 2.30 m, find the electric field at the following Q. (a) 1.50 m magnitude 7.1896 direction N/C radially outward (b) r=2.20m magnitude 0 direction N/C radially inward (c) 2.50 m magnitude direction The magnitude is zero. X (d) What is the charge distribution on the...
Assume that a red blood cell is spherical with a radius of 3.5 ×10−6 m and with wall thickness of 8.8 ×10−8 m. The dielectric constant of the membrane is about 5.0. The potential difference across the membrane is 0.080 V. a. Assuming the cell is a parallel plate capacitor, estimate the capacitance of the cell. b. Determine the positive charge on the outside and the equal-magnitude negative charge inside.