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Which of the following has been confirmed by empirical tests of the Ricardian model? A. Companies tend to export goods in which they have a relatively high level of productivity B. International trade has no impact on income distribution C. The existence of nontraded goods results in a high degree of specialization among countries D. All predictions of the model for a multi-product, multi-country world are highly unrealistic. E. The unimportance of economies of scale as a cause of trade

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Two different sets of genes control embryonic development in Drosophila: maternal-effect genes and zygotic genes. Products of the maternal-effect genes (mRNA and/or proteins) are distributed in a gradient throughout the egg and regulate the expression of the first three groups of zygotic genes (gap, pair-rule, and segment polarity genes).

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last year, T- Bills returned 2 percent while your investment in large company stocks earned an average of 5 percent.

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Define Mendel's Laws of Segregation and Independent assortment. Give examples of physical traits you personally have due to these.

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Catherine Bell's categories of ritual can include: Question 20 options: Rituals of exchange Rituals of communion Rituals of fasting All of these

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The astroid C is the curve x^(2/3) + y^(2/3) = a^(2/3), where a is a fixed constant. The curve C can be parametrized by x = a cos(3t), y = a sin(3t) where t is in [0, 2π]. Use Green’s Theorem to find an expression for the area of the interior of C. (You do not need to fully solve any integrals.)

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It is possible to switch to energy produced from renewable sources without bankrupting an economy. O True O False

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the uniform thin bar of 30kg has an angular speed in the opposite direction of the clock of 6rad / s. Determine the tangential and normal components of the O bolt relationship on the bar and the angular acceleration of this at this time. 0.3 m 0.6 m M = 60N \cdot m

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4. A quantity of air occupying a volume of 1 m³ at 4 bar and 150°C is allowed to expand isentropically to 1 bar. Its enthalpy is then raised by 70 kJ by heating at constant pressure. What is the total work done and heat transferred during this process? [W=347 kJ, Q=70 kJ] If the whole process is to be replaced by a polytropic expansion which will result in the same final pressure and temperature, what index of expansion is required? Compare the work and heat transfer of this process with that of the original one. [W=360 kJ, Q=81.4 kJ]

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Y1401 The magnetic field at a field point \textbf{r} due to a magnetic dipole \textbf{\mu} is \textbf{B} = \frac{\mu_0}{4\pi} \left[ \frac{3\textbf{r}(\textbf{\mu} \cdot \textbf{r})}{r^5} - \frac{\textbf{\mu}}{r^3} \right] The unit vectors \hat{\textbf{e}}_1, \hat{\textbf{e}}_2, \hat{\textbf{e}}_3 and the red circular wire C of radius \rho are fixed. The magnet of dipole moment \textbf{\mu} rotates with the time dependence \textbf{\mu}(t) = \mu(\hat{\textbf{e}}_3 \cos \omega t + \hat{\textbf{e}}_2 \sin \omega t). The distance between the magnet center at the origin O and the circle center P is D. Compute the following quantities in the limit D >> \rho, d. A Magnetic flux passing the inner surface of C in the direction of \hat{\textbf{e}}_3. B The potential increment after making a single round trip from Q to the same point along the direction. C The power consumed by the wire if the resistance of C is R.

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alejandra g.