Numerade

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1. We know that the electric field within a conductor at equilibrium must be zero. a) We thought about that in the context of neutral conductors, in which the number of electrons and protons balance out. But would it remain true that $$E = 0$$ even if you put some extra charge on the conductor? Explain briefly. Spoiler alert: the answer to part a is yes. This means that the extra charge must rearrange itself in just the right way to produce $$E = 0$$ within the conductor (though not outside). If the conductor is not symmetric, this is a rather complex problem to solve, and yet the charges just "know" where to go. b) There is something that we can know about the location of these extra charges even without a complicated calculation, however. Thinking about Gauss's Law, describe the only possible region of the conductor where the extra charge could be located. c) Does your reasoning for part (b) require the conductor to be a symmetric shape such as a sphere?

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Which brazing method uses high-intensity infrared lamps as the heat source? Group of answer choices Torch brazing Furnace brazing Induction brazing Resistance brazing Dip brazing Infrared brazing

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\int (48\root(3)(x^(2)) 23-(21)/(x) (25)/(x^(6)))dx (144)/(5)x^((5)/(3)) 23x-21ln|x| 25ln|x^(6)| c (144)/(5)x^((5)/(3)) 23x-21ln|x|-(5)/(x^(5)) c (144)/(5)x^((5)/(3)) 23x-21ln|x|-(5)/(x^(5)) 80x^((5)/(3)) 23x-21ln|x| 25ln|x^(6)| c

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The function of the pericardial fluid is to stimulate the heart. reduce friction between the pericardial membranes. replace any blood that is lost. lubricate the heart valves. provide oxygen and nutrients to the endocardium.

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Emmanuelle is training a rat to press lever. She rewards the rat for responding after a certain amount of time passes, but the amount of time is not the same on every trial, so the rat presses the bar every few seconds. Emmanuelle is using a ______ schedule of reinforcement. variable-ratio variable-interval fixed-ratio fixed-interval

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what are the functions of glycoproteins and glycolipids in animal cell membranes? a. facilitated diffusion of molecules down their concertration gradients b. active transport of molecules against their concentration gradients c. maintaining the integrity of a fluid mosaic membrane d. cel identity and the ability to distinguish one type of cell from another

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Consider a uniformly charged ring in the xy plane, centered at the origin. The ring has radius a and positive charge q distributed evenly along its circumference. Imagine a small metal ball of mass m and negative charge −q0. The ball is released from rest at the point (0, 0, d) and constrained to move along the z axis, with no damping. If 0 < d ≪ a, what will be the ball's subsequent trajectory?

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Consider the cellular use of oxygen and how that might be affected by a fetus when running a marathon

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What happens in the cortex and medulla of the thymus to produce naïve T cells

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Consider the initial value problem for function y given by, $$y'' - 2y' + 17y = -2\delta(t-1),$$ $$y(0) = 0,$$ $$y'(0) = 0.$$ (a) Find the Laplace Transform of the source function, $F(s) = \mathcal{L}[-2\delta(t-1)]$. $$F(s) = $$ (b) Find the Laplace Transform of the solution, $Y(s) = \mathcal{L}[y(t)]$. $$Y(s) = $$ (c) Find the solution $y(t)$ of the initial value problem above. $$y(t) = $$ Recall: If needed, the step function at c is denoted as $u(t-c)$.

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vanesa g.