Numerade

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A positively charged particle Q_1 = 45 nC is held at fixed position. A second charge Q_2 of mass m=7.5 ug is located a distance d=25cm directly above charge Q_1. The net force on charge Q_2 is equal to zero. Calculate the magnitude of Q_2 in units of nanocoulombs

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What is the direction of the necessary force? Parallel to the horizontal segment of pipe, opposite to the flow.At angle of 45∘∘ from both segments of the pipe.Parallel to the vertical segment of pipe, opposite to the flow.At angle of 135∘∘ from both segments of the pipe.

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Some fish have a density slightly less than that of water and must exert a force by swimming to stay barely submerged. What force must a grouper of mass M exert to stay submerged in saltwater density

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Question 3 1 pts Consider a linear time-invariant system in which $H(j\omega)$ equals 2 in frequency band A, 3 in frequency band B, and 2 in frequency band C. Further suppose the input to this system is $x(t) = ax_1(t) + bx_2(t) + cx_3(t)$, where $a = 4$, $b = 3$, and $c = 5$, and where $x_1(t)$ only has frequency content in frequency band A, $x_2(t)$ only has frequency content in frequency band B, and $x_3(t)$ only has frequency content in frequency band C. The output can be written as $y(t) = dx_1(t) + ex_2(t) + fx_3(t)$. What is $d + e + f$?

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In the Freakonomics episode "Trust Me," what do we learn about current levels of trust in the United States?

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Find all solutions of the equation in the interval $[0, 2\pi)$. \\ $2 \cos \frac{x}{2} - 1 = 0$ \\ Write your answer in radians in terms of $\pi$

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is the narrowest monetary aggregate that the Fed reports. O M1 O M2 O M3 O M0

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5. Question Details SerCP8 15.P.043. My Notes Ask Your Teacher Four closed surfaces, $S_1$ through $S_4$, together with the charges -2Q, Q, and - Q are sketched in the figure below. The colored lines are the intersections of the surfaces with the screen. $S_1$ $S_4$ $-2Q$ $+Q$ $-Q$ $S_3$ $S_2$ Find the electric flux through each surface. (Use any variable or symbol stated above along with the following as necessary: $\epsilon_0$.) $\Phi_{through \ S_1} = $ $\Phi_{through \ S_2} = $ $\Phi_{through \ S_3} = $ $\Phi_{through \ S_4} = $ Need Help? Read It Talk to a Tutor

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1. (2 pts) Consider each of these shapes below to be a solid object. At each of the solid points, draw a dashed line through the point which is normal (perpendicular) to the surface. Your protractor or a file card would be a useful drawing aid.

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For the truss shown below, find the internal force in member No. 6 using the section method. /M 5m 7 5m 10k 5m 5m Knowing that M = -33.88N, -79.75XN = 40

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derek b.