Numerade

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Which of the following dilates both arteries and veins? Losartan. Acetazolamide. Nitroglycerine.

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Q2- two equal positive charges q1 q2 = 400nc are located at x-50cm, y-0cm and x=-50cm, y=0cm. Respectively. What are the magnitude and the direction of the total electric force that q1 and q2 exert on a third charge Q= 800nc located at x=0, y=-1m? Q3- From the voltage-time gragh below, find the Vpp, frequency and period? TIME PERIOD 1/E 20 25 30 35 Q4- choose the correct answer 1/It has strong covalent bonding between its electrons a)conductor b)semiconductor c)insulator 2/ a correct formula for the power a)P=Vmax Imax b)P=Vrms/R c)P= Irms R d)P = V²rms/R 3/A charge A=-10C and charge B=2.5C and they are 1m apart Which of the following statements is correct A)Fab=4Fba b)Fab=-4Fba c)Fba=4Fab d)Fba=-Fab

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5. (5 points) Write the following system in matrix form $Ax = b$. Do not write it in augmented form. Do not solve. $-x_1 + 7x_2 - 3x_3 = 9$ $6x_2 - 2x_3 = 3$ $x_1 - x_3 = 7$ $2x_1 + 3x_2 - 5x_3 = 5$

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Find a formula for $\frac{dy}{dx}$ for the implicit function $ax^2 + xy^2 + b\ln y = c$. The constants $a$, $b$, and $c$ may appear in your answer. $\frac{dy}{dx} = \frac{-2ax - y^2}{2xy + \frac{b}{y}}$ DNE $\frac{dy}{dx} = 2x^2 + 2xy + \frac{b}{y} + c$ $\frac{dy}{dx} = \frac{2x - ay}{2xb - y}$

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6) Which physical phenomena is responsible for observing a photo peak in the spectrum? a. Compton scattering with the detector material b. pair production interaction in the detector material c. photoelectric effect interaction in the sample d. photoelectric interaction with the detector material 7) If the voltage of X-ray tube is doubled, the intensity of X-rays will become: a. Half b. Unchanged c. Doubled d. Four times 8) In Nal detector, the relation between the pulse height and the applied voltage is ($P = KV^n$), n is proportional to: a. The length of the photomultiplier. b. The number of the dynodes in the photomultiplier. c. The applied voltage. d. The geometry of Nal crystal.

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3. The graph below shows the number of miles driven after each hour of a road trip. a) Find the rate of change from hour I to hour 4. Miles 460 360 260 160 60 2 4 6 8 10 Hours b) Find the rate of change from hour 8 to hour 10. 4. The graph below shows the change in the water depth of a lake through various years. a) Find the rate of change from 2000 to 2004. Water Depth (ft) 74 66 58 50 42 100 104 108 112 116 Year b) Find the rate of change from 2012 to 2016.

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by age 20 how many times has the skeleton been entirely replaced?

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Question 12 5 pts Shown below is the activity for one of the products of Random Creations: January 1 balance, 80 units @ $50 each Purchases: January 18: 40 units @ $51 each January 28: 40 units @ $52 each Sales: January 12: 30 units January 22: 30 units January 31: 45 units Required: Compute the cost of goods sold for January, assuming Random Creations uses FIFO. ? $4,000 ? $5,365 ? $2,845 ? $5,275

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Question 25 4 pts The sequence of DNA in a bacterial chromosome where DNA replication begins is called the O OriF O OrR O OriT

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\frac{\cos x}{1 + \sin x} + \frac{1 + \sin x}{\cos x} = 2 \sec x

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virginia c.