A virus can be modeled as a 50-nm-diameter sphere. Viruses,like biomolecules, are charged. A typical virus has a charge of-300e. Consider a virus inside a 37°C mammalian cell where theion concentration is 150 mM.Part AWhat is the electric potential at the surface of the virus?Express your answer with the appropriate units.Vsurface = Value?VSubmitPrevious Answers Request Answer× Incorrect; Try Again; 4 attempts remaining▾Part BWhat are the positive ion concentration and the negative ion concentration at the surface of the virus?Express your answers in terms of molarity and separated by comma.C+surface, C-surface=ΜΕ ΑΣΦ?M

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A virus can be modeled as a 50-nm-diameter sphere. Viruses, like biomolecules, are charged. A typical virus has a charge of -300e. Consider a virus inside a 37°C mammalian cell where the ion concentration is 150 mM. What is the electric potential at the surface of the virus? Express your answer with the appropriate units. μA ? Vsurface = Value V Submit Previous Answers Request Answer Part B Incorrect; Try Again; 4 attempts remaining What are the positive ion concentration and the negative ion concentration at the surface of the virus? Express your answers in terms of molarity and separated by comma. C+surface, C-surface = ΜΕ ΑΣΦ ? M

A virus can be modeled as a 50-nm-diameter sphere. Viruses, like biomolecules, are charged. A typical virus has a charge of -300e. Consider a virus inside a 37°C mammalian cell where the ion concentration is 150 mM. What is the electric potential at the surface of the virus? Express your answer with the appropriate units. μA ? Vsurface = Value V Submit Previous Answers Request Answer Part B Incorrect; Try Again; 4 attempts remaining What are the positive ion concentration and the negative ion concentration at the surface of the virus? Express your answers in terms of molarity and separated by comma. C+surface, C-surface = ΜΕ ΑΣΦ ? M

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter26: Electric Potential

Section: Chapter Questions

Problem 49PQ

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Similar questions

A small spherical pith ball of radius 0.50 cm is painted with a silver paint and then -10 C of charge is placed on it. The charged pith ball is put at the center of a gold spherical shell of inner radius 2.0 cm and outer radius 2.2 cm. (a) Find the electric potential of the gold shell with respect to zero potential at infinity, (b) How much charge should you put on the gold shell if you want to make its potential 100 V?
In a certain region of space, a uniform electric field is in the x direction. A particle with negative charge is carried from x = 20.0 cm to x = 60.0 cm. (i) Does the electric potential energy of the charge-field system (a) increase, (b) remain constant, (c) decrease, or (d) change unpredictably? (ii) Has the particle moved to a position where the electric potential is (a) higher than before, (b) unchanged, (c) lower than before, or (d) unpredictable?
A rod of length L (Fig. P20.26) lies along the x axis with its left end at the origin. It has a nonuniform charge density = x, where is a positive constant. (a) What are the units of ? (b) Calculate the electric potential at A. Figure P20.26
In Active Figure 20.8a, take q1 to be a negative source charge and q2 to be the test charge. (i) If q2 is initially positive and is changed to a charge of the same magnitude but negative, what happens to the potential at the position of q2 due to q1? (a) It increases. (b) It decreases. (c) It remains the same. (ii) When q2 is changed from positive to negative, what happens to the potential energy of the two-charge system? Choose from the same possibilities.
A 0.500 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly distributed 40.0 pC charge on its surface. What is the potential near its surface?
A long thin wire is used in laser printers to charge the photoreceptor before exposure to light. This is done by applying a large potential difference between the wire and the photoreceptor. a. Use Equation 26.23, V(r)=20lnRr to determine a relationship between the electric potential V and the magnitude of the electric field E at a distance r from the center of the wire of radius R (r R). b. Determine the electric potential at a distance of 2.0 mm from the surface of a wire of radius R = 0.80 mm that will produce an electric field of 1.8 106 V/m at that point.
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Figure P26.44 shows a rod of length = 1.00 m aligned with the y axis and oriented so that its lower end is at the origin. The charge density on the rod is given by = a + by, with a = 2.00 C/m2 and b = 1.00 C /m2. What is the electric potential at point P with coordinates (0, 25.0 cm)? A table of integrals will aid you in solving this problem.
(a) How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 5.00 cm2? (b) Find the maximum charge if polystyrene is used between the plates instead of air. Assume the dielectric strength of air is 3.00 106 V/m and that of polystyrene is 24.0 106 V/m.
The two charges in Figure P25.14 are separated by d = 2.00 cm. Find the electric potential at (a) point .A and (b) point B, which is halfway between the charges.
(a) Find the electric potential difference Ve required to stop an electron (called a stopping potential) moving with an initial speed of 2.85 107 m/s. (b) Would a proton traveling at the same speed require a greater or lesser magnitude of electric potential difference? Explain. (c) Find a symbolic expression for the ratio of the proton stopping potential and the electron stopping potential. Vp/Ve.
The surface charge density on a long straight metallic pipe is . What is the electric potential outside and inside the pipe? Assume the pipe has a diameter of 2a.