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victor manuel ball

victor manuel b.

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Problem: An electric motor operating at 1180 RPM transfers 5.0 kW of power to a gear drive through a solid circular shaft. The shaft has a length of 1 m and is supported by two bearings, one on each side of the gear drive. The shaft is shouldered, with a diameter d along most of the length but a larger diameter D at the gear. The fillet radius r and the two diameters are related by the ratios r/d = 0.15 and D/d = 1.33. The shaft is made of steel, with shear modulus G = 79 GPa and tensile yield strength Sy = 414 MPa. The maximum shear stress ($$\tau_{max}$$) is limited to $$\frac{1}{4}$$ of the shear yield strength ($$S_{ys}$$) for steel, and the angle of twist ($$\phi$$) between the motor and gear should not exceed $$2.0^\circ$$. Determine the diameters d and D to satisfy all conditions. Give answers to the nearest integer value (in mm). GEAR DRIVE BEARING BLOCK L=1m Stress Concentration Factor K Ratio, r/d Fig. 9.10 Stress concentration factor for a shouldered shaft subject to torsion. D/d = 1.09 D/d = 1.20 D/d = 1.33 D/d = 2.0

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Suppose that 10,000 customers in a retailer's customer database are categorized by three customer types: 3,500 prospective buyers, 4,500 first time buyers, and 2,000 repeat (loyal) buyers. A sample of 1,000 customers is needed. What type of sampling is best for this case? Simple random sampling Stratified sampling Cluster sampling Systematic sampling

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Listen In an industrialized society, which term is most often used to describe social stratification? occupation slavery class caste

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Polyvinyl chloride is used in (A) water bottles. (B) CD cases. (C) milk cartons. (D) plumbing pipe.

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What type of selection that shifts allele frequencies in a consistent direction in response to environmental pressures (form at one end of the range of variation become more common)? O directional O somatic O disruptive O stabilizing

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A number, \( n \), is added to 15 less than 3 times itself. The result is 101 . Which equation can be used to find the value of \( n \) ? \( 3 n-15+n=101 \) \( 3 n+15+n=101 \) \( 3 n-15-n=101 \) \( 3 n+15-n=101 \)

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Sat, Jun 22 Enter a mathematical expression more.. Question Help: Video Check Answer Question 15 \( 0 / 10 \) pts 10 Details Find the volume of the region under the surface \( z=x y^{2} \) and above the area bounded by \( x=y^{2} \) and \( x+2 y=8 \). Round your answer to 4 decimal places, if necessary. Volume \( = \) \( \square \) Question Help: Video Check Answer Question 16 \( 0 / 10 \) pts 10 Details

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The process of using mRNA to make a protein is called Question 10 Select one: a. Cell differentiation b. RNA processing c. Transcription d. Translation

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Jesus Christ, having entered the sanctuary of heaven once and for all, intercedes for us as the mediator, but leaves the Holy Spirit alone to do what she wants. will never return. intercedes only for Catholics in Heaven. intercedes constantly for us as the mediator who assures us of the permanent outpouring of the Holy Spirit. Question 7 (1 point)

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9. Find \frac{d}{dx} \left( \frac{(\sqrt{x} + x^2)(x^5 - 7x + 5)}{3x + x^{-2}} \right)

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