Problem 19.04. Gel Electrophoresis is an experimental procedure which can be used toseparate DNA and/or RNA molecules by size. The molecules are placed in a gel thenelectrodes are added to create a potential difference across the gel. The molecules, which arecharged, feel two forces, the electric force due to the presence of the electric field, and a dragforce due to inter-molecular forces. The drag force is non-linear and difficult to model, so forexperimental purposes the electrophoritic mobility e v/E of molecules is measured,which tells you the velocity v of a molecule for a given electric field strength E.=Two electrodes with a potential difference of V = 100. V are placed in a gel a distanced = 20.0 cm apart, and two molecules M₁ and M₂ with mobility µe,1 = 4.00 × 10-4 cm²and μe,2 = 2.00 × 10-4 cm² are placed in a gel. (a) How long before a microscope with aresolution of R 200. mum can tell the molecules apart? (b) What is the maximum timethe gel can run for before the faster molecule gets to the edge of the container?=

Problem 19.04. Gel Electrophoresis is an experimental procedure which can be used to separate DNA and/or RNA molecules by size. The molecules are placed in a gel then electrodes are added to create a potential difference across the gel. The molecules, which are charged, feel two forces, the electric force due to the presence of the electric field, and a drag force due to inter-molecular forces. The drag force is non-linear and difficult to model, so for experimental purposes the electrophoritic mobility µe = v/E of molecules is measured, which tells you the velocity v of a molecule for a given electric field strength E. 100. V are placed in a gel a distance Two electrodes with a potential difference of V = = V.s d 20.0 cm apart, and two molecules M₁ and M₂ with mobility µe,1 4.00 × 10-4 cm² and He,2 2.00 x 10-4 cm² are placed in a gel. (a) How long before a microscope with a resolution of R 200. mum can tell the molecules apart? (b) What is the maximum time the gel can run for before the faster molecule gets to the edge of the container? V.s = =

Problem 19.04. Gel Electrophoresis is an experimental procedure which can be used to separate DNA and/or RNA molecules by size. The molecules are placed in a gel then electrodes are added to create a potential difference across the gel. The molecules, which are charged, feel two forces, the electric force due to the presence of the electric field, and a drag force due to inter-molecular forces. The drag force is non-linear and difficult to model, so for experimental purposes the electrophoritic mobility µe = v/E of molecules is measured, which tells you the velocity v of a molecule for a given electric field strength E. 100. V are placed in a gel a distance Two electrodes with a potential difference of V = = V.s d 20.0 cm apart, and two molecules M₁ and M₂ with mobility µe,1 4.00 × 10-4 cm² and He,2 2.00 x 10-4 cm² are placed in a gel. (a) How long before a microscope with a resolution of R 200. mum can tell the molecules apart? (b) What is the maximum time the gel can run for before the faster molecule gets to the edge of the container? V.s = =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Two equally charged, 1.00 g spheres are placed with 4.00 cm between their centers. 2 When released, each begins to accelerate at 225 m/s . As the spheres move, do you expect the force between them to increase, decrease or remain the same? Use an equation to justify your reasoning. Calculate the spacing needed between the spheres that would cut the force between them in half.
if the force that a proton exerts on an orbiting electron is F, what is the force that the electron exerts on the proton?. Why?. No explanation, no points.
please solve asap.
Two charged particles, each of mass m and charge q, are initially very far apart, and moving directly towards each other, each with initial speed v. Ignoring any forces other than the electric force between them, how close do they get to each other before turning around? Give your answer in terms of q,m,v, and ɛ0.
Consider a polar molecule such as water, which has an electrical dipole moment of 6×10-30 Cm. Suppose we place such a molecule in an external electric field of 3.5×10-6 N/C. What is the difference in potential energy between the dipole moment being parallel to and anti-parallel to the electric field?
In the ever popular game from the future, Electrodisc, players can score double points by pushing a disc into another disc with the electric field generated by a third disc. The discs are by regulation 1 kg. All discs have the same shape and are made of the same conducting material. In the figure below, disc 1 is held in place, and disc 2 is held stationary 4.1 m from disc 1 by a player. The player then releases disc 2. 10 m. F12 What is the initial magnitude of the acceleration imposed on the second disc? The charge on the first disc is 1.7 mC. The charge on the second disc is 1.7 mC. The charge on the third disc is neutral. m/s² Later, discs 2 and 3 touch and charge is exchanged. How much charge is exchanged once the charges on each disc reach an equilibrium? mC After charge is exchanged, what is the direction of the force on disc 3 due to disc 2? O toward the left O toward the right O upward O downward
Two 4.0 kgkg masses are 1.0 mm apart on a frictionless table. Each has 1.0 μCμC of charge. Part A What is the magnitude of the electric force on one of the masses? Part B What is the initial acceleration of each mass if they are released and allowed to move? Express your answer in meters per second squared.
A (closed) system contains charges, Q₁ = 2.94 C, Q₂ = -3.64 C and Q3 = -1.52 C. What is the net charge in this system?