Numerade

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which is a red flag that should signal to a consumer that a nutrition product or claim may be misleading

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Which of the following null hypotheses is appropriate for an independent-measures t test? $$H_0: \mu_1 = \mu_2$$ $$H_0: \mu \neq 6$$ $$H_0: \mu = 0$$ $$H_0: \mu_1 \neq \mu_2$$

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4. (a) The coil, shown in Fig. 4(A), has a power factor of 0.8. When the coil is connected in series with a capacitor, the overall circuit draws an equal amount of active power and reactive power and the total(apparent) power from the source is $100\sqrt{2}$ VA. what is the power factor of the circuit? If the coil has $5\Omega$ of resistance and the supply frequency is 50Hz what is the value of the capacitor? (b) In Fig. 4(B), the inductive load consumes 150W. When a capacitor is connected in parallel to the load the overall power factor becomes 0.9(lagging). If the ratio between the reactive-powers-before and reactive-powers-after = 2 : 1, and the supply voltage is 250V, what is the value of the capacitive reactance? What is the power factor of the load? Figure 4: (A) (For Q.4(a)) Figure 4: (B) (For Q.4(b))

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c. Choose the correct answer below. A. There is no natural number n such that $n + 6 = 6 + n$. B. For all natural numbers n, $n + 6 = 6 + n$. C. There exists at least two natural numbers n such that $n + 6 = 6 + n$. D. There exists at least one natural number n such that $n + 6 = 6 + n$.

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What happens to people’s hearing as they get older? What happens to people’s hearing as they get older? Increased ability to hear low frequencies Decreased ability to hear high frequencies Decreased ability to hear low frequencies Increased ability to hear high frequencies

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For an economy as a whole, the market value of production must equal expenditure. investment must equal the value of stocks and bonds purchased. wages must equal income. consumption must equal saving.

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4. Find current and potential difference across each resistor when the switch is open and when closed. 24 V a 3 ? 3 ? 5 ? 1 ? b

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10. Write two differential equations for the system by using cyclic currents, beginning at the instant the switch is closed. The dependent variables should be the charges. Express the equations in a state-space representation, and use software to find the damped natural frequencies, solve, and plot the current through the resistor vs. time. Use $e(t) = 12\sin(2t)$ volts, $C_1 = 1000\mu F$, $C_2 = 2000\mu F$, $R = 50\Omega$, $L_1 = 8H$, and $L_2 = 3H$, assume zero initial conditions.

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2.6 The light scattering data from the aqueous solutions of octyltrimethylammonium octa nesulphonate are given below (Anacker, 1953). \begin{tabular}{cc} $c - c_{CMC}$ (kg/dm$^3$) & $\frac{H(c - c_{CMC})}{\tau} \times 10^5$ (kmol/kg) \\ \hline $9.32 \times 10^{-4}$ & 4.64 \\ $4.16 \times 10^{-3}$ & 4.94 \\ $5.84 \times 10^{-3}$ & 5.19 \\ $1.02 \times 10^{-2}$ & 5.09 \\ $1.14 \times 10^{-2}$ & 5.21 \\ $2.04 \times 10^{-2}$ & 6.01 \\ \hline \end{tabular} where $\tau$ is the turbidity in excess of that of the solvent, $c$ is the concentration of the surfactant and $c_{CMC}$ is the critical micelle concentration. Calculate the micellar molecular weight from these data.

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(p->q)^(p->r) Op->(q^r) p->(qVr) ~pV(q^r) None of the above ~(~pVq)^p p^~q ~pV~q ~p^q none of the above

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charles d.