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Problem III: (20points) The first atomic bomb test was carried in New Mexico (USA) in 1945. A series of photos of time lapses of the explosion was published few years later. A British physicist G.I. Taylor*, used these photos combined with dimensional analysis to estimate the energy released by the explosion, which was still a secret at the time! Read about this and explain how this was done. Discuss and comment on any limitations or assumptions that were needed to reach the result.

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If the marginal benefit of eating one more McNugget is smaller than the marginal cost, then you should

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According to above question which is the total expenditure or cost of consuming oil? ? 2000 ? 1000 ? 3000 ? 500

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Question 56 The BEST definition of attention is that it involves O intuition. O random acts of perception. O unconscious awareness of a stimulus. O cognitive focus on something in particular.

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Solve the following quadratic equation. $2x^2 - 2x + 7 = 0$

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Name Unit 10 Test - Inference for Means Part A: Open Response 1. Use the following information: The Wechsler Adult Intelligence Scale (WAIS) is a common "IQ test" for adults. The distribution of WAIS scores for persons over 16 years of age is approximately normal with mean 100 and standard deviation 15. x a. What is the probability that a randomly chosen individual has a WAIS score of 105 or higher? Show your work. mean - 100 / 2 = X-M 80:8-15 0/5n n=60 = 100-105 1515 n=60 Theun- μ = 100 SD = 0 = 15 Period b. What are the mean and standard deviation of the sampling distribution of the average WAIS score x a SRS of 60 people? S 15 = 15 こ 60 7.745 -1.936 % confidence interval when n = 25 E • mean - 100 SD - 1.936 c. What is the probability that the average WAIS score of an SRS of 60 people is 105 or higher? Show your work or provide "calculator talk". Find the critical t* value for each of the following confidence intervals: (Providing calculator talk will be howing work) 92% confidence interval with 12 de

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Consider the following Boolean expression: F(A, B, C, D) = (A + B) (B' + C + D') (A + C + D') (B + D') (C + D') To eliminate as many terms as possible using the Consensus Theorem, we need to identify pairs of terms that differ in only one variable. Let's examine the expression: (A + B) (B' + C + D') (A + C + D') (B + D') (C + D') First, let's look at the terms (A + B) and (A + C + D'). These two terms differ in the variable B. We can eliminate the variable B by applying the Consensus Theorem: (A + B) (A + C + D') = A + C + D' Next, let's consider the terms (B' + C + D') and (B + D'). These two terms differ in the variable C. We can eliminate the variable C by applying the Consensus Theorem: (B' + C + D') (B + D') = B' + D' Finally, let's examine the terms (A + C + D') and (C + D'). These two terms differ in the variable A. We can eliminate the variable A by applying the Consensus Theorem: (A + C + D') (C + D') = C + D' After applying the Consensus Theorem to eliminate as many terms as possible, the simplified Boolean expression becomes: F(A, B, C, D) = A + C + D' (B' + D') (C + D') Please note that there may be additional simplifications possible depending on the specific requirements or context of the problem.

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Problem3(25points) It is required to sketch power triangle for each case a) Find the current $I$ in phasor form b) Calculate the power factor $F_p$ c) Determine the capacitor value that must be placed in parallel to the source to raise the power factor $F_p$ to 0.92 d) Find the new value for the current $I$ in phasor form. (after the capacitor is placed in parallel to the source) e) Find the type of elements and their impedance in ohms within each electrical box. (Assume that all elements of a load are in series.) + Load 1 E= 120 V rms at f=60HZ Load 2 300W 100 W 0VAR 300 VAR (L)

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12. The solid shaft is subjected to a torque, bending moment, and shear force as shown. Determine the principal stresses and principal directions acting at points A and B. Draw on a square element. [Ans, for A, $\sigma_1$ = 5.50MPa, $\sigma_2$ = -0.611MPa] 300 N·m 450 mm 45 N·m 800 N A B -25 mm

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10101 10 Nm/m -$60mm x L=820mm 5Nm A 6061 aluminum bar has diameter 60mm and length 820mm. It has a distributed torsional moment of 10Nm/m applied along the entire length, and a torsional moment of 5Nm applied at the free end. a) What is the torsional constant b) What is the maximum shear stress as a function of $x$? c) What is the rate of twist as a function of $x$? d) What is the total twist (measured relative to the fixed end) as a function of $x$?

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