Numerade

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When asked to describe some of the ills that plague the Caribbean issues like race and poverty were named. What approach to the subject is being utilised: Question 13Answer a. Psychodynamic b. Sociocultural c. Humanistic d. Biological

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Question 1 of 10 1. According to the information presented in the module, Tier 2 and Tier 3 mathematics intervention should do which of the following? align with the core instruction be provided in the general education classroom be provided in place of Tier 1 instruction target basic mathematics skills

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18) Which of the following is not a possible step in a substitution reaction? I. $\stackrel{Br}{\rightarrow} \xrightarrow{CN^{-}} $ II. $\stackrel{OH}{\rightarrow} \xrightarrow{H^{+}} $ III. $\stackrel{Br}{\rightarrow} \xrightarrow{} $ IV. $\xrightarrow{Br-Br} $ A) I B) II C) III D) IV

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Question 3 A power of 4.5 kW has to be transmitted from a pulley of an effective diameter of 0.25 m. The pulley is running at 1200 rev/min, the angle of contact is $160^\circ$ and the groove angle is $40^\circ$. The coefficient of friction is 0.2. If the allowable tension in each belt is 100 N, calculate the number of V-belts that will be required to transmit power

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A pulley is driven by a belt as shown in the figure below. Neglecting centrifugal effects, the minimum coefficient of friction that will prevent slipping between the belt and the pulley is most nearly: 450 N 3,000 N 300-mm-DIAMETER PULLEY

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An object is located 2.0 m in front of a large concave mirror that has a focal length of 1.5 m. On the figure below, draw the optical axis and the focal point of the mirror. Q2 (8 pts) Redraw the optical axis and focal point, and draw the three special rays that are appropriate for this setup, in order to define the object's image. Clearly indicate where the image is located. Q3 (3 pts) Is the image real or virtual? Justify your response.

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2. The 3D structure of a MOSFET is shown in Fig.2. The channel length of the transistor is a) 1.8 um b) 0.18 um c) Not shown d) Could be any 1.8 um S OXIDE GATE SOURCE (n+) 0.18um SUBSTRATE (p-Si) Fig.2 the structure of a transistor DRAIN (n+)

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A beam subjected to axial loading will experience an axial stress, σa. If, in addition, the beam is subjected to a bending load, a bending stress, σb, will also occur at the outer fibers (top and bottom surfaces) of the beam. The maximum stress at the outer fibers of the beam will be σmax = σa + σb. Assume that σa and σb are independent. Given: σ̄a = 95 MPa, σ̂a = 8.6 MPa, σ̄b = 385 MPa, and σ̂b = 22.5 MPa. The rod is made of steel with S̄ = 553 MPa and σ̂s = 42.7 MPa. Assuming the strength and stresses have normal distributions, determine the design factor and the reliability guarding against yielding. The design factor is [ ]? The reliability guarding against yielding is [ ]?

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Ex\frac{d}{dx}cos\ e^x = sin\ u \frac{du}{dx}, u=e^x

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#14 ERROR ANALYSIS Describe the error in finding the distance between A(6, 2) and B(1, -4). X AB = \sqrt{(6 - 2)^2 + (1 - (-4))^2} = \sqrt{4^2 + 5^2} = \sqrt{16 + 25} = \sqrt{41} \approx 6.4 Did not average x -coordinates and y-coordinates to find the midpoint. Did not find differences of the x-values and of the y-values. Did not make all signs positive before subtraction. Did not take the absolute value of the differences. The actual length, AB, to the nearest tenth is units.

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