A molecule of DNA (deoxyribonucleic acid) is 2.14 ?m 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 1.21% upon becoming charged. Determine the effective spring constant of the molecule.

Q: A molecule of DNA (deoxyribonucleic acid) is 2.18 ?m long. The ends of the molecule become singly…

A: Write the given values with suitable variables. L=2.18 μm=2.18×10-6 mΔL=1.30%L=1.301002.18×10-6…

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Q: wo parallel plates are charged with +Q and –Q respectively as shown in the figure, where Q = 44 nC.…

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A: The seperation between plates is 2.2 cm = 0.022 m.The charge density on the plate is 47 nC/m2.

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A: Given: The side of each square plate is 9.3 m. The separation between the plates is 2.5 mm. The…

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Q: A point-like charge Q = 20.5 µC is embedded into a dielectric material with constant k = 20. F…

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Q: A uniform electric field has magnitude 240 N/C and is directed to the right. A particle with charge…

A: Given that:- Magnitude of uniform Electric field=240N/C

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A: Given data:  Number of free electrons (n) = 3.9×107 Required: The total charge of in the red blood…

Q: A non-uniform linear charge distribution with a length of 3L is placed along the x-axis, and its…

A: The charge densityLamda(x) = ax If a point charge -q moves from point (L/2,L) to point (L/2,3L)

Q: Consider the following. A 60.0 0.500 mm (a) Red blood cells often become charged and can be treated…

A: Solution:Given:The charge at point A is qA=1.80pCThe charge at point B is qB=7.10pCThe charge at…

Q: A proton (mass 1.67 x 10 kg, charge 1.60 x 10 C moves from point A to point B under the infiuence of…

A: Here kinetic energy is equal to the electrostatic energy. So,  12mv2=eVV=mv22e Here, v is velocity…

Q: When you touch a friend after walking across a rug on a dry day, you typically draw a spark of about…

A:

Q: A molecule of DNA (deoxyribonucleic acid) is 2.21 ?m long. The ends of the molecule become singly…

A: The given DNA molecule is 2.21 μm long, when uncharged.  Let r=2.21 μm=2.21×10-6 m Now, the two…

Q: How much energy is stored by the electric field between two square plates, 9.1 cm on a side,…

A: Data provided :  Side of square plate (s) = 9.1 cm = 9.1 × 10-2 m Distance between plates (d) = 2.1…

Q: 60.0 0.500 mm (a) Red blood cells often become charged and can be treated as point charges. Healthy…

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Q: When a nerve impulse propagates along a nerve cell, the electric field within the cell membrane…

A: Given,  Electric Field in one direction = 7×105 N/C Electric Field in another direction = 3.1× 105…

Q: 2) In left figure, lower halves of two metallic spheres of radii a = 5 mm are embedded in a…

A: Given that  Radius of metallic sphere,a=5 mm=5×10-3 m Dielectric with relative permittivity,εr=5 The…

Q: A molecule of DNA (deoxyribonucleic acid) is 2.29 µm long. The ends of the molecule become singly…

A:

Q: You are working in a biology lab during your summer break. Your supervisor asks you to perform an…

A: Given: Length of DNA = 2.32 μm. Shrinkage in length of DNA = ∆x = 1.25% of length L = 0.029 μm…

Q: Figure 2.0 nC + 1.0 cm 60° 60° 1.0 cm 1.0 cm Copyright © 2003 D (+1.0 nC Determine the direction of…

A: We are given system of 3 charges. These charges are at vertices of equilateral triangle. We hence…

Q: A (deoxyribonucleic acid) is 2.28 µm long. The ends of the molecule become singly ionized: negative…

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Q: IP A particle with a mass of 4.0 g and a charge of +5.0x10-2 μC is released from rest at point A in…

A: Part A: As the given charge is positive. The direction of motion of charge is in the direction of…

Q: A molecule of DNA (deoxyribonucleic acid) is 2.17⁢μm long. The ends of the molecule become singly…

A: Length (L) = 2.17 μm compression = 1 % upon being charged magnitude of charge on each end of…

Q: Consider the following. (a) Red blood cells often become charged and can be treate point charges.…

A:

Q: A proton (mass = 1.67 x 10-27 kg, charge = 1.60 × 10-19 C) moves from point A to point B under the…

A: Answer:) VB-VA=-22.99 volt

Q: A molecule of DNA (deoxyribonucleic acid) is 2.17μm long. The ends of the molecule become singly…

A: Given data: The length of molecule is L=2.17 µm. The change in length is x=1%L.

Q: Consider the following. 0.500 mm 60.0 (a) Red blood cells often become charged and can be treated as…

A: Part-a: given charge at A = +1.80 pC charge at B = + 7.10 pC charge at C = - 4.40 pC we have to…

Q: Problem 1: Two parallel plates are charged with +Q and -Q respectively as shown in the figure, where…

A: Given that, Q= 37 nC Area (A)= 0.015 m² Distance between plates (d)= 6.2 cm Or d= 0.062 m

Q: The figure shows an electric dipole. What is the magnitude of the dipole's electric field at point…

A: Given data :- q = 5.04×10-6 Cd = 9.64×10-6 m = 0.000964×10-2 mr = 6.73 cm = 6.73×10-2 m

Q: Consider the following. 41 magnitude direction 60.0⁰ B 0.500 mm (a) Red blood cells often become…

A: qA = 1.80 pC qB = 7.10 pC qC = -4.30 pC length of each side of equilateral triangle = 0.5 mm θ = 60o

Q: A rubber rod is rubbed with animal fur, causing the fur to develop a positive charge. This means…

A: A rubber rod when rubbed with the animal fur acquires a negative charge .

Q: A molecule of DNA (deoxyribonucleic acid) is 2.17 μm long. The ends of the molecule become singly…

A: The expression for the effective spring constant is,

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.