Numerade

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6-96 An inventor claims to have developed a refrigeration system that removes heat from the closed region at -12C and transfers it to the surrounding air at 25C while maintaining a COP of 6.5. Is this claim reasonable? Why?

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In which stage of Bowlby's ethological perspective on attachment do babies begin to show a preference for familiar people? reciprocal relationships discriminating sociability indiscriminate social responsiveness attachments

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Which two organs utilize a portal system to deliver hormones from one to the other? Hypothalamus & Posterior pituitaryAnterior pituitary & Posterior pituitary Hypothalamus & Anterior pituitary Hypothalamus & Adrenal medulla Anterior pituitary & Thyroid gland

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Which monosaccharide is represented in the skeletal representation shown below? OH OH HO OH OH O D-talose O D-mannose O D-allose O L-allose O D-glucose O L-glucose O L-galactose O D-altrose O D-galactose O L-altrose O L-talose O D-gulose O L-mannose O L-gulose O D-idose O L-idose

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Which of the following is the best example of a differentiated product? Question 4 options: Paper Automobiles Milk Gold

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Carbon percentage (by weight) in crude petroleum may be about 65 75 85 95

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In an insulated container, 0.50 kg of water at 80 ∘C is mixed with 0.050 kg of ice at −5.0∘C. After a while, all the ice melts, leaving only water. a. Find the amount of heat it would take to bring the ice to its melting point, 0 ∘C. b. Find the amount of heat releasing in bringing the water to its freezing point, 0∘C. Answer does not need a sign. Both answers in joules

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The 3 \times 3 matrix $A^2$ is orthogonally diagonalisable. Use orthogonal diagonalisation to find a symmetric matrix $A$ such that $A^2$ has eigenvalues $\lambda_1 = 10$, $\lambda_2 = 6$, $\lambda_3 = 8$ and corresponding eigenvectors $\begin{bmatrix} 0\\0\\-3 \end{bmatrix}$, $v_2 = \begin{bmatrix} 0\\1\\0 \end{bmatrix}$, $v_3 = \begin{bmatrix} 1\\0\\0 \end{bmatrix}$. $\begin{bmatrix} 8 & 0 & 0\\0 & 6 & 0\\0 & 0 & 10 \end{bmatrix}$ Your last answer was interpreted as follows: $\begin{bmatrix} 8 & 0 & 0\\0 & 6 & 0\\0 & 0 & 10 \end{bmatrix}$

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21. In the circuit shown, Io = 4 A, R = 2 , and L = 0.5 H. If i(0) = 2 A, the derivative di/dt (in amperes/second) att=0is 1.8 2.4 3.2 4.-8 5.-4

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11) The figure shows two long, parallel current-carrying wires. The wires carry equal currents $I$ in the directions indicated and are located a distance $d$ apart. (a) Use Ampere's law to derive the magnetic field of wire 1. (b) Calculate the magnitude and direction of the magnetic field at the point $P$ that is located an equal distance $d$ from each wire. (c) Will the wires attract or repel each other? Explain.

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david l.