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* BIO Electrophoresis Electrophoresis is used to separate biological molecules of different dimensions and electric charge (the molecules can have different charge depending on the pH of the solution). A particular molecule of radius R with charge q is in a viscous solution that has an
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- In a thundercloud there may be electric charges of +45.0 C near the top of the cloud and -45.0 C near the bottom of the cloud. These charges are separated by 1.50 km. What is the electric force on the top charge?magnitude N direction repulsive attractivearrow_forwardShown are the configuration of a gel electrophoresis experiment. Charged plates establish an electric field on a region of gel between the plates. A solution of DNA fragments, which acquire a negative charge in solution, is analyzed by using an electric field to drive the fragments through the gel. A drag force opposes the motion, causing the fragments to move at a constant speed. Larger fragments move more slowly, so the fragments separate by size to give a “fingerprint” of the sample. The fragments move in the direction of _________ electric potential and __________ electric potential energy.A. higher, higherB. higher, lowerC. lower, higherD. lower, lowerarrow_forwardPart A We are usually not aware of the electric force acting between two everyday objects because the electric force is due to microscopic-sized particles such as electrons and protons. most everyday objects have as many plus charges as minus charges. the electric force is invisible. the electric force is one of the weakest forces in nature. Submit Request Answerarrow_forward
- Which of the following statements are true statements about electric force? Choose all that apply. Electric force is a contact force. Electric forces can only act between charged objects - either like-charged or oppositely-charged. Electric forces between two charged objects increases with increasing separation distance. Electric forces between two charged objects increases with increasing quantity of charge on the objects. If object A attracts object B with an electric force, then the attractive force must be mutual - i.e., object B also attracts object A with the same force. A doubling of the quantity of charge on one of the objects results in a doubling of the electric force. A tripling of the quantity of charge on both of the objects results in an increase in the electric force by a factor of 6. A doubling of the separation distance between two point charges results in a quadrupling of the electric force. A tripling of the separation distance between two point charges results in…arrow_forwardShown are the configuration of a gel electrophoresis experiment. Charged plates establish an electric field on a region of gel between the plates. A solution of DNA fragments, which acquire a negative charge in solution, is analyzed by using an electric field to drive the fragments through the gel. A drag force opposes the motion, causing the fragments to move at a constant speed. Larger fragments move more slowly, so the fragments separate by size to give a “fingerprint” of the sample. In the system shown , the electric field is directed to the _____; the DNA fragments move to the _____.A. right, right B. right, leftC. left, right D. left, leftarrow_forwardIn last week's lab, you (perhaps!) were successful in charging two pith balls (the little styrofoam balls) with a like charge that caused them to repel. The situation looked somewhat like this: The separation of the pith balls will depend on the charge placed on them and their weight. We would like to figure out what approximate charge was placed on the pith balls. a) start by drawing a free-body diagram for each of the pith balls showing all the forces acting on each. Be careful to think about the direction of the F, force. b) to solve this problem, you will need to know the mass of the pith balls (you may ignore the mass of the strings). Styrofoam has a density of about 50 kg/m² What is the approximate mass of on of the pith balls? c) Use equilibrium arguments to solve for the Coulomb's Law force on one of the pith balls. d) Now, assume the charge on both pith balls is the same, and that they are separated by about 5 cm when charged. Calculate the approximate charge on each pith…arrow_forward
- Objects A and B are both positively charged. Both have a mass of 200 g , but A has twice the charge of B. When A and B are placed 60 cm apart, B experiences an electric force of 0.45 N . a) What is the charge on A? Express your answer to two significant figures and include the appropriate units. b)If the objects are released, what is the initial acceleration of A? Express your answer to two significant figures and include the appropriate units.arrow_forwardSpheres A and B have the same initial positive charge The magnitude of the repulsive electric force between the two spheres is 14.4 N when separated by a distance of 0.03 m. (a) Find the initial charge Express your answer in micro. (b) The spheres are then allowed to touch each other and then separated. Find the electric force between them if the radius of sphere A is three times that of sphere B. Please include detailed solution. I will attach the reference formulas that we use. The value of k is 8.99 x 10^9, not rounded off to 9. Thank you!arrow_forwardA protein molecule in an electrophoresis gel has a negative charge. The exact charge depends on the pH of the solution, but 30 excess electrons is typical. Part A What is the magnitude of the electric force on a protein with this charge in a 1600 N/C electric field? Express your answer in newtons. να Αφ F = Submit Request Answer Provide Feedbackarrow_forward
- = 8.987 x 10° N · m² /C². Vacuum permitivity, eo = 8.854 × 10¬12 F/m. Magnetic Permeability of vacuum, Ho = 12.566370614356 × 10-7 H/m. Magnitude of the Charge of one electron, e = -1.60217662 × 10-19 C. Mass of one electron, me = 9.10938356 × 10-31 kg. Unless specified otherwise, each symbol carries their usual meaning. For example, µC means micro coulomb. Coulomb constant, k : X X X X X YO х хх х хх ++++++++++++++ E 19 (+ A proton is moving in the x direction in a region of crossed fields as shown in Figure, where the electric field is E = 25 × 10°k N /C and magnetic field B = (-1500.0) jT. (Hint : Electric and magnetic force both can apply force on the moving charged particle) %3D a) What is the speed of the proton if it is not deflected? (that is, it moves in a straight line though the fields) Speed of the proton Give your answer to at least three significance digits. m/s b) If the length of the plate is 2.8 m then how much time the proton will take to travels that length? Time…arrow_forwardIn an experiment a negatively charged balloon (balloon X) is repelled by another charged balloon Y. However, an object Z is attracted to balloon Y. Which of the following can be the charge on Z? Select two answers. a. negative b. positive c. neutral d. cannot be determinedarrow_forwardCourse مرحبا بك في فيس بو. . . Solve 1 wrt x | Mi.. الأهلي أون لاين Google dazji EF EF تسجيل الدخول - Syria-news.com:. ome Dashboard My Courses This course nl What is the magnitude of the net force exerted on the charge with the q3 ed out of Let q = +2.4µC, and d = 0.33m on 92 = -2.0q d 93=-3.0q %3D l a 91 = +q 94 = -4.0q 2 Type here to searcharrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning