Physics

Physics, 19.07.2019 17:00, cuzhernamesari

What would happen to the waveform if the negative and positive electrode positions are switched?

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Physics, 02.08.2019 16:20, Jeremiahcornelis

Which statement is incorrect with regard to standard electrode potentials? a. the electrode in any half-cell with a greater tendency to undergo reduction is positively charged relative to the standard hydrogen electrode and therefore has a positive e°. b. electrons will flow from more negative electrode to more positive electrode. c. the electrode potential of the standard hydrogen electrode is exactly zero. d. all of the above statements are correct. e. e°cell is positive for spontaneous reactions. f. e° cell is the difference in voltage between the anode and the cathode.

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Physics, 07.10.2019 21:20, MayFlowers

Two 6.0-cm-diameter electrodes are spaced 5.0mm apart. they are charged by transferring 1.1×10,,electrons from one electrode to the other. an electron is released from rest at the surface of the negative electrode. (a) how long does it take the electron to cross to the positive electrode? (b) what is its speed as it collides with the positive electrode? assume the space between the electrodes is a vacuum.

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Physics, 11.10.2019 23:30, Cannon2793

Current passes through a solution of sodium chloride. in 1.00 second, 2.68×1016na+ ions arrive at the negative electrode and 3.92×1016cl− ions arrive at the positive electrode. part a.) what is the current passing between the electrodes? (answer in ma) part b.) what is the direction of the current in the ionic solution? (answer is either away from the negative electrode or towards the negative electrode)

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Biology, 18.10.2019 04:30, brittanysanders

Gel electrophoresis is normally set up with the negative electrode at the top of the gel and the positive electrode at the bottom of the gel. the dna products are loaded at the top of the gel, and then a current is applied to separate them. however, when preparing to run a gel, you accidentally switched the locations of the negative and positive electrodes such that the positive electrode is at the top and the negative electrode is at the bottom. you still loaded the dna products at the top of the gel as normal. what result are you most likely to observe if you apply an electric current to this gel setup? a) shorter dna molecules will move up the gel, and longer dna molecules will move down the gel. b) all dna molecules will migrate up the gel toward the positive electrode. c) longer dna molecules will move up the gel, and shorter dna molecules will move down the gel. d) all dna molecules will migrate down the gel toward the negative electrode.

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