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william golden

william g.

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Simplify the expression completely: ((20x^(10))/(5x^(2)))^(-2)= Simplify the expression completely: $$ \left(\frac{20x^{10}}{5x^2}\right)^{-2} $$

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A closed-circular DNA molecule in its relaxed form has an $Lk$ of 500. How does the linking number change if a protein complex binds, wrapping the DNA around it to form a solenoidal supercoil? decreases becomes undefined increases no change

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You want to understand your body in a more meaningful way, so over break you purify pepsin and conduct a kinetic analysis on it 2nM Pepsin v0 (uM/sec) 300 200 100 0 20 40 60 80 [S], mM a. (7 points) What is $k_{cat}$ for pepsin? 2nM Pepsin 1/v0 (sec/uM) 0.04 0.03 0.02 0.01 0 0 0.1 0.2 y = 0.0529x + 0.0029 0.3 1/[S] (1/mM) 0.4 0.5 0.6 b. (13 points) What concentration of substrate is present when you have 20 nM/sec velocity from 2nM enzyme? c. (10 points) Since many people drink alcohol during the holidays, you decide to see what the effect of ethanol is on pepsin activity. Surprisingly, you find that it is a competitive inhibitor with a $K_D$ of 0.129M. If you have a blood alcohol of 0.005M, sketch new lines on the graphs above to show the effect of the competitive inhibitor on pepsin activity. Give values for the new $V_{max, app}$ and $K_{M, app}$ on your graph.

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8. Use phasor techniques to find the magnitude of the impedance of the circuit shown in the given figure. Given: R = 20, L = 5H, and C = 1/8 F. [Two decimal digits]

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(8 marks) Question 4: Given the module name of a 64-bit interfacing DDR SDRAM is PC3-12800 and its timing parameter CL-TRCD-RP-TRAS = 3-4-5-15. (a) Find its data rate (Provide unit). (b) Find its standard name. (c) Find its I/O bus frequency (in MHz). (d) Find its memory clock frequency (in MHz). (e) Find the period time of the I/O bus (in ns). (f) Find the RAS-to-CAS latency (in ns). (g) Assume the SDRAM has been idled for a long time. Find the memory cycle time (in ns) for retrieving 8 consecutive datawords (assume the page does not require to close after reading, i.e. no need to precharge the row address). (2 marks)

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1. True or false: You can create a network with two computers. True False

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Topic 1 Income - Tutorial Participation Ex... > on details ome - Tutorial Participation Exercise submitted 15 Aug at 12:53 late Question 2 1/1 pts Which of the following is subject to taxation in the hands of the recipient? Reimbursement of \$550 received by the sales manager that he spent in making overseas calls to potential customers of the business. An electric scooter worth \$5,000 provided to an employee by her employer for the employee to assist in travelling to work and assist in reducing global emissions. Jamie's pocket money \$1,000 travel allowance paid to an employee each month.

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Consider the demand curves for Pepsi Cola shown in the figure below. Suppose the economy is at point A. Which of the following could result in a movement to point B? PRICE ($) D A C B D? D? QUANTITY an increase in the price of Coca-Cola. an increase in the opportunity cost of soft drinks. a decrease in the relative price of Pepsi. a decrease in the price of Coca-Cola.

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QLT: Materials-$32.31 Calls Puts Strike Expiration Price Strike Expiration Price $30.05 November $1.28 $30.05 November $2.58 $34.10 November $1.28 $34.10 November $2.24 The profit of the trade before trading costs is $ (Round to the nearest cent.)

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Let $A = \begin{bmatrix} a & b \\ c & d \end{bmatrix}$. Find a formula for the eigenvalues of $A$ in terms of $a$, $b$, $c$ and $d$. a. $= \lambda^2 - d\lambda - a\lambda + ad - bc$ b. $= (\lambda - a)(\lambda - d) - bc$ c. $= \frac{(a + d) \pm \sqrt{(a - d)^2 + 4bc}}{2}$ d. $= \frac{(a + d) \pm \sqrt{a^2 + d^2 - 4ad - 4bc}}{2}$ e. $= \frac{(a + d) \pm \sqrt{a^2 - 2ad + d^2 + 4bc}}{2}$ f. $p(\lambda) = \begin{vmatrix} \lambda - a & -b \\ -c & \lambda - d \end{vmatrix}$ g. $p(\lambda) = 0 \rightarrow$ h. $\lambda = \frac{(a + d) \pm \sqrt{-(a + d)^2 - 4(ad - bc)}}{2}$ i. $= \lambda^2 - (a + d)\lambda + ad - bc$ j. $= \frac{(a + d) \pm \sqrt{a^2 + d^2 - 4ad + 4bc}}{2}$

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