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joseph morris

joseph m.

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An annuity pays $11 per year for 58 years. What is the future value (FV) of this annuity at the end of that 58 years given that the discount rate is 7%? OA. $9,355.52 B. $4,677.76 C. $10,914.78 D. $7,796.27

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Consider, for instance, a bar of initial length $L$ and cross-sectional area $A$ stressed by a force of magnitude $F$. As a result, the bar stretches by $\Delta L$. (Figure 1) Let us define two new terms: • Tensile stress is the ratio of the stretching force to the cross-sectional area: $$stress = \frac{F}{A}$$ • Tensile strain is the ratio of the elongation of the rod to the initial length of the bar: $$strain = \frac{\Delta L}{L}$$ It turns out that the ratio of the tensile stress to the tensile strain is a constant as long as the tensile stress is not too large. That constant, which is an inherent property of a material, is called Young's modulus and is given by $$Y = \frac{F/A}{\Delta L/L}$$

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If the light emitted in a flame test is green, which of the answers below is the most likely wavelength for the light that was originally absorbed by the sample? O 400 nm O 500 nm O 600 nm O 700 nm

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Homework 7 Problem 2 A periodic signal x(t) is expressed in the complex Fourier series form as $$x(t) = \sum_{n=-\infty}^{\infty} C_n e^{jn\omega_0 t}$$, where T = 1 second and $$C_0 = 1$$ $$C_1 = (1 - 0.5j)$$, $$C_{-1} = (1 + 0.5j)$$, $$C_2 = \frac{\sqrt{2}}{4} (1 + j)$$, $$C_{-2} = \frac{\sqrt{2}}{4} (1 - j)$$, $$C_n = 0, |n| > 2$$. 1. Express x(t) in the trigonometric form $$x(t) = a_0 + \sum_{n=1}^{\infty} [a_n cos(n\omega_0 t) + b_n sin(n\omega_0 t)]$$ What is the fundamental frequency $\omega_0$ in rad/s 1. What is $a_0$ 2. What is $a_1$, $b_1$, $a_2$ and $b_2$ Script 1 % Enter the fundamental frequency Omega 2 Omega = [ ]; 3 % Enter a0 4 a0 = [ ]; 5 % Enter a1 6 a1 = [ ]; 7 % Enter b1 8 b1 = [ ]; 9 % Enter a2 10 a2 = [ ]; 11 % Enter b2 12 b2 = [ ]; 13 14 15

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Infants spend nearly half their sleep time in ____ sleep. Stage N1 Stage N2 Stage W REM

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According to Aristotle, the highest virtue is: ? Honesty ? Contemplation ? Courage ? Love

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An experiment is performed by placing a known mass with its center of mass a distance of meters from a fulcrum, as shown above. An unknown mass is used to balance the system, with its distance from the fulcrum not completely measurable. Every time the known mass is changed, the unknown mass is moved until equilibrium is reached. The data that were gathered for this experiment are below. Known mass ( kg ) Unknown mass location ( m ) If the mass of the beam is ignored, the value of the unknown mass is most nearly equal to which of the following? Responses

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Answers to the following questions a. Discuss two possible sources of error. b. How do your average calculated density and density from the slope of the mass vs. volume graph compare to the actual density of steel? (Avg. density of steel = 7850 kg/m³) c. Express the density of steel in units of g/cm³. d. Which method is more accurate, the average calculated density or the density from the slope of the mass vs. volume graph?

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Determine whether the given ordered pair is a solution of the system. (2,-1) 5x + 3y = 7 6x - 2y = 15

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Studying Classification with Cladograms Trait Crayfish Perch Rat Grasshopper Frog segmented bodies hair tetrapod exoskeleton wings gills antennae fins bilateral symmetry mammary glands jaws mandible mouthparts jointed appendages

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