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Chapter 19, Problem 03 Suppose that the electric potential outside a living cell is higher than...
Chapter 19, Problem 01 During a particular thunderstorm, the electric potential between a cloud and the...
Chapter 19, Problem 01 During a particular thunderstorm, the electric potential between a cloud and the ground is Vcloud-vgr d = 2.8 x 108 V with the cloud being at the higher potential. What is the change in an electron's potential energy when the electron moves from the ground to the cloud? Number the tolerance is +/-5% Units
Chapter 18, Problem 36 Go The membrane surraundin ng a living cell consists of an inner...
Chapter 18, Problem 36 Go The membrane surraundin ng a living cell consists of an inner and an outer wall that are separated by a small space. Assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 x 10 C /m. (a) What is the magnitude of the electric field within the cell membrane? (b) Find potassium ion (K; charge - +e) placed...
PH 142 Total: 25 Due: 02/01/19 at Question 3-6 points (a) Calculate the electric field in...
PH 142 Total: 25 Due: 02/01/19 at Question 3-6 points (a) Calculate the electric field in a cell membrane with a thickness of 8nm when the membrane potential is -70 mV. (2 points) (b) If a Sodium ion, Na", moves from inside the cell to outside the cell, calculate the change in the ion's electric potential energy. Does it increase or decrease? (2 Points) (e) In one cycle the sodium-potassium pump removes 3 sodium ions from the cell while importing...
The electric potential difference across the membrane of a body cell is +0.083 V (higher on...
The electric potential difference across the membrane of a body cell is +0.083 V (higher on the outside than on the inside). The cell membrane is 8.1×10−9 m thick. a. Determine the magnitude of the E⃗ field through the cell membrane.
Chapter 19, Problem 18 A charge of +213 uC is fixed at the center of a...
Chapter 19, Problem 18 A charge of +213 uC is fixed at the center of a square that is 0.48 m on a side. How much work is done by the electric force as a charge of +5.1 uC is moved from one corner of the square to any other empty corner? Number Units the tolerance is +/-2%
Chapter 19, Problem 16 GO The drawing shows a square, each side of which has a...
Chapter 19, Problem 16 GO The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive charges 41 and 42 are fixed at the corners of the square. Find the electric potential energy of a third charge 43 = -5.00 x 10-°C placed at corner A and then at corner B. B 91 = +1.50 x 10-C 92 = +4.00 x 10°C EPEA = EPEB Chapter 19, Problem 18 A charge...
Chapter 19, Problem 43 Your answer is partially correct. Try agairn The electric potential energy stored...
Chapter 19, Problem 43 Your answer is partially correct. Try agairn The electric potential energy stored in the capacitor of a defibrillator is 92 J, and the capacitance is 170 μF what is the potential difference across the capacitor plates Numberi 1.04e-3 the tolerance is +/-5% Units v SHOW HINT
Help Number Units 2. Chapter 19, Problem 11 GO cloud and the During a lightning flash,...
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Number Units 2. Chapter 19, Problem 11 GO cloud and the During a lightning flash, there exists a potential difference of Vabud Vrn 2.7x 10 V between a ground. As a result, a charge of-16 C is transferred from the ground to the cloud. is done on the charge by the electric force? (b) If the work done by the electric force were used to accelerate a 1100-kg final speed? automoblie from rest, what would be its (c) If...
The electric potential inside a cell is negative with respect to the surrounding extracellular fluid. The...
The electric potential inside a cell is negative with respect to the surrounding extracellular fluid. The potential difference across the cell membrane is 70 mV. If a sodium ion with a mass of 22.98 u and a charge of 1.6 X 10-19 C is accelerated from rest through a membrane channel (proteins which allow the passive movement of ions (ion channels), water (aquaporins) or other solutes to passively pass through the membrane down their electrochemical gradient). Find the speed of...
Problem 3 (5 points): The membrane that surrounds a certain type of living cell has a...
Problem 3 (5 points): The membrane that surrounds a certain type of living cell has a surface area of 5.0x109 m2 and a thickness of 1.0 x108 m. Assume that the membrane behaves like a parallel plate capacitor and has a dielectric constant K 5.0. The potential difference between the inner surface of the membrane and the outer surface is +60mV, i.e. outer surface is at higher potential. a) Calculate the capacitance of the membrane. (1) b) How much charge...
Chapter 19, Problem 01 During a particular thunderstorm, the electric potential between a cloud and the ground is Vcloud-vgr d = 2.8 x 108 V with the cloud being at the higher potential. What is the change in an electron's potential energy when the electron moves from the ground to the cloud? Number the tolerance is +/-5% Units
Chapter 18, Problem 36 Go The membrane surraundin ng a living cell consists of an inner and an outer wall that are separated by a small space. Assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 x 10 C /m. (a) What is the magnitude of the electric field within the cell membrane? (b) Find potassium ion (K; charge - +e) placed...
PH 142 Total: 25 Due: 02/01/19 at Question 3-6 points (a) Calculate the electric field in a cell membrane with a thickness of 8nm when the membrane potential is -70 mV. (2 points) (b) If a Sodium ion, Na", moves from inside the cell to outside the cell, calculate the change in the ion's electric potential energy. Does it increase or decrease? (2 Points) (e) In one cycle the sodium-potassium pump removes 3 sodium ions from the cell while importing...
Chapter 19, Problem 18 A charge of +213 uC is fixed at the center of a square that is 0.48 m on a side. How much work is done by the electric force as a charge of +5.1 uC is moved from one corner of the square to any other empty corner? Number Units the tolerance is +/-2%
Chapter 19, Problem 16 GO The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive charges 41 and 42 are fixed at the corners of the square. Find the electric potential energy of a third charge 43 = -5.00 x 10-°C placed at corner A and then at corner B. B 91 = +1.50 x 10-C 92 = +4.00 x 10°C EPEA = EPEB Chapter 19, Problem 18 A charge...
Chapter 19, Problem 43 Your answer is partially correct. Try agairn The electric potential energy stored in the capacitor of a defibrillator is 92 J, and the capacitance is 170 μF what is the potential difference across the capacitor plates Numberi 1.04e-3 the tolerance is +/-5% Units v SHOW HINT
Help
Number Units 2. Chapter 19, Problem 11 GO cloud and the During a lightning flash, there exists a potential difference of Vabud Vrn 2.7x 10 V between a ground. As a result, a charge of-16 C is transferred from the ground to the cloud. is done on the charge by the electric force? (b) If the work done by the electric force were used to accelerate a 1100-kg final speed? automoblie from rest, what would be its (c) If...
Problem 3 (5 points): The membrane that surrounds a certain type of living cell has a surface area of 5.0x109 m2 and a thickness of 1.0 x108 m. Assume that the membrane behaves like a parallel plate capacitor and has a dielectric constant K 5.0. The potential difference between the inner surface of the membrane and the outer surface is +60mV, i.e. outer surface is at higher potential. a) Calculate the capacitance of the membrane. (1) b) How much charge...
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