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. Part A What is the electric potential at the surface of the virus? Express your answer with the appropriate units. HA Vauce - Value Units Submit Previous Answers Request Answer ?
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- Needs Complete typed solution with 100 % accuracy.How much energy is stored by the electric field between two square plates, 9.1 cm on a side, separated by a 2.3-mm air gap? The charges on the plates are equal and opposite and of magnitude 15 nC. Express your answer using two significant figures and include the appropriate units. PE = Value Units Submit Request Answer * Previous Next 15:10 hp W 27/03/2022 2000 hp f6 4 f11 10 F12 f10 f7 II f5 f8 f9 insert prt sc ( 9- ) 0 & -backspa // 大 t6A proton (mass = 1.67 × 10-27 kg, charge = 1.60 × 10-19 C) moves from %3D point A to point B under the influence of an electrostatic force only. At point A the proton moves with a speed of 50 km/s. At point B the speed of the proton is 83.1 km/s. Determine the potential difference V8 - VA (in units of volts). Select one: O A. -36.21 O B. 22.55 OC. -22.99 O D. 2.18 O E. 17.26
- A molecule of DNA (deoxyribonucleic acid) is 2.17μm long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 1.00% upon becoming charged. Determine the effective spring constant of the molecule.Item 13 Part A When you scuff electrons off a rug with your shoes, your shoes become negatively charged. O positively charged. O ionic. electrically neutral.A square of particlesFour particles are attached to the four corners of a square whose edge measures L (see image). Particles A and B each have a positive charge q and particles C and D each have a negative charge -q. (a) What is the electrical potential energy of the system? (b) Is this energy positive or negative?
- A very long insulating cylindrical shell of radius 6.70 cm cames charge of linear density 8.70 μC/m spread uniformly over its outer surface. You may want to review (Pages 765-769) For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An infinite line charge or charged conducting cylinder What would a voltmeter read if it were connected between the surface of the cylinder and a point 4.80 cm above the surface? 195] ΑΣΦ AV= Submit Request Answer Part B AV- What would a voltmeter read if it were connected between the surface and a point 1.00 cm from the central axis of the cylinder? 1Η ΑΣΦΑ Submit ? Request Answer V ? VA water molecule is built as an isosceles triangle; the two hydrogen atoms are separated by 1.5x10-10m, and the oxygen is a distance 1x10-10m from either of the hydrogens. Treating the hydrogens as point charges, each of +e, and the oxygen as a point charge of -2e, estimate the total electric potential energy stored in this molecule.A Van de Graff Generator is a laboratory device with a large hollow metal sphere supported by a cylindrical insulating stand. It is for building up high voltages. Why does your hair stand out when you are charged by such device?