Numerade

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In response to peers, discuss what it means to be a digital citizen now and how future generations might identify a digital citizen.

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Required information Three loads $P_1 = 3.000$ kN, $P_2 = 5.00$ kN, and $P_3 = 6.50$ kN are suspended as shown from the cable $ABCDE$ where $d_C = 4$ m. Determine the components of the reaction at $E$. The horizontal component of reaction at $E$ is kN$\rightarrow$. The vertical component of reaction at $E$ is kN $\uparrow$. (Round the final answer to two decimal places.)

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3. (4 points) Indicate the major product of the following reactions being sure to indicate stereochemistry where appropriate. Full mechanisms are not necessary. a. [H2SO4] excess MeOH -H2O b. Ph Ph-P= Ph Ph H H

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Question 4 of 15 Which of the following will not take the shape of the container? A a gold coin B a quart of milk C oxygen gas D motor oil

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7. [0/2 Points] DETAILS MY NOTES PREVIOUS ANSWERS A block of mass 1.3 kg is attached to a horizontal spring that has a force constant 900 N/m as shown in the figure below. The spring is compressed 2.0 cm and is then released from rest. 0 a b ................. x = 0 ? (a) A constant friction force of 3.4 N retards the block's motion from the moment it is released. Using an energy approach, find the position $x$ of the block at which its speed is a maximum. cm (b) Explore the effect of an increased friction force of 12.5 N. At what position of the block does its maximum speed occur in this situation? The response you submitted has the wrong sign. cm Need Help? Viewing Saved Work Revert to Last Response Submit Answer

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What is the purpose of using a different disposable pipette tip for each sample? A. To avoid a chemical reaction in the tip B. to avoid contaminating a DNA sample with other DNA C. it's not necessary to change the tip between samples D. None of the above

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An outline of the structure of a complex organic molecule is shown below. Complete the Lewis structure and determine the number of sigma (?) and pi (?) bonds in the molecule. 8? and 6? N N A IC 9? and 6? B 8? and 9? C 8? and 7? D 9? and 9? E N N

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Refer to Figure 3-12. Which of the graphs best represents the market for theater tickets that are already sold out on the day of the performance? ?(1) ? (2) ? (3) ? (4)

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Consider two blocks $M_1$ and $M_2$. $M_1$ is placed on a table with friction and attached by a string to $M_2$. The string passes over a massless, frictionless pulley so that $M_2$ hangs down, as shown in the figure. $M_1 = 18$ kg and $M_2$ is unknown. The coefficients of friction between $M_1$ and the surface are: • static friction: $\mu_s = 0.36$ • kinetic friction: $\mu_k = 0.12$ When the blocks are released, the system is observed to remain at rest. What is the largest possible value for $M_2$ such that the system remains at rest?

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15. Solve and write solution as a parameter. \begin{cases} x - y &= 1 \\ x + y + 2z &= 3 \\ x - 3y - 2z &= -1 \end{cases}

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jose francisco s.