Numerade

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4. A hammer thrower is practicing hitting a bullseye 10 meters away. The thrower releases the hammer after reaching an angular velocity of 16.2 rad/s and the hammer is 180 cm from the axis of rotation. Calculate the linear velocity of the hammer. Answer: 29.16 m/s

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Which of the following best explains the direct impact of statins on cholesterol metabolism? Question 10 options: They stimulate thiolase, thus making more malonyl-CoA for inhibition of the tricarboxylic acid cycle. They inhibit HMG-CoA synthase, a key step for the synthesis of mevalonate that inhibits fatty acid synthesis. They bind to low-density lipoprotein (LDL) receptors, displacing cholesterol and inhibiting cholesterol synthesis. They stimulate the synthesis of trans-unsaturated fatty acids. They inhibit 3-hydroxy-3-methylglutaryl (HMG)-CoA reductase, a key regulator of cholesterol synthesis.

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Which of the following causes a rightward shift of the supply curve? Responses Aa decrease in the cost of production a decrease in the cost of production Ba government tax on production a government tax on production Can increase in the price of the good being sold an increase in the price of the good being sold Da decrease in the number of producers

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what would happen if the gene encoding major histocompatibility complex class I

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Determine and sketch the domains of the following functions: (a) f(x, y) = √x + √y + √(x + y) + ln(4 − x^2 − y^2). (b) g(x, y) = sin^−1(x + y). (c) h(x, y) = tan(y)

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b. The velocity of a crate sliding down a ramp is given by $v_x = (0.75t^2)$ m/s, $v_y = (3t)$ m/s, $v_z = (1.875t^{3/2})$ m/s, where $t$ is in seconds. i. Determine the magnitude of the crate's position when $t = 2$ s. [6 marks] ii. Determine the magnitude of the crate's acceleration when $t = 2$ s. [6 marks]

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5. (1*20=20) Discuss the tools by public relations professionals.

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A channel has the following power delay profile a) Determine the mean excess delay time and the rms delay spread. b) If 16-QAM is used, what is the maximum possible bit rate without the need of an equalizer? Suggest a method to double this bit rate without needing an equalizer c) If a mobile is traveling through the channel with a velocity of 100 Km/hr, what is the time at which the channel could be considered stationary if the carrier frequency is 900 MHz? 0 dB - 10 dB - 100 dB $\tau_0 = 0$ 1$\mu s$ 5$\mu s$

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\mathcal{L}\{\sin(t) + \cos(t)\} = ? \mathcal{L}\{e^{-2t}\} = ? \mathcal{L}\{te^{-2t}\} = ? \mathcal{L}^{-1}\left\{\frac{1\angle\pi/2}{s+1+j2} + \frac{1\angle-\pi/2}{s+1-j2}\right\} = ?

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Consider a source computer (S) transmitting a file of size 10^6 bits to a destination computer (D) over a network of two routers (R1 and R2) and three links (L1, L2, and L3). L1 connects S to R1; L2 connects R1 to R2; and L3 connects R2 to D. Let each link be of length 100 km. Assume signals travel over each link at a speed of 10^8 meters per second. Assume that the link bandwidth on each link is 1 Mbps. Let the file be broken down into 1000 packets, each of size 1000 bits. Find the total sum of transmission and propagation delays in transmitting the file from S to D? (A) 1005 ms (B) 1010 ms (C) 3000 ms (D) 3003 ms

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