Numerade

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1) For the circuit shown below, find a) the input resistance ($$R_{id}$$) and b) the differential voltage gain ($$A_d$$). $$\beta = 99$$ $$R_c = 10 k\Omega$$ $$v_{id}$$ $$v_{od}$$ $$Q_1$$ $$Q_2$$ $$R_{id}$$ $$I = 0.4 mA$$

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Write get_powers()'s base case to output '3 to the power of 0 is 1' and return 1 if arg is equal to 0

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Which of the following are positive impacts of microorganisms? (Choose all that are correct) Pathogenic Useful model organisms Help produce oil Produce antibiotics Ferment foods

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How does the overall number of protons change when an isotope goes through alpha decay? A no change B decrease by 1 C decrease by 2 D increase by 1

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Jamal does not like eating his vegetables, especially broccoli. Whenever dad makes broccoli for dinner, Jamal gets upset and starts cursing at the dinner table. Each time Jamal curses at the table his dad sends him to his bedroom without having to eat his broccoli. As a result, Jamal is significantly more likely to curse whenever broccoli is on the menu so he doesn't have to eat it. Jamal's cursing is being ______ by his father sending him to his room. ? positively reinforced ? punished ? negatively reinforced ? extinguished

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5. Two parallel long wires carry the same current and apply F=90 N per unit length to each other. If both these currents are doubled and the wire separation is tripled, what will be the force per unit area? A) 20 N 2) 40 N 3) 60 N 4) 120 N E) 180 N

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4. A particle has velocity $v(t) = t^3 - 10t^2 + 24t$ m/s. Compute (a) Displacement over $[0, 6]$ (b) Total distance traveled over $[0, 6]$ Indicate the particle's trajectory with a motion diagram.

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A bill of exchange confirms that a customer owes 100000 and is due to pay in 90 days. If this is sold to a discount house for 95000, a firm has raised this finance 90 days early. Assuming 360 days in a year, what is the annual interest cost in percentage terms of this transaction.

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A random base change is less likely to affect a particular phenotype in humans than in bacteria. Why? Only 2% of the human genome is transcribed into functional RNA products. Only 2% of the bacterial genome is transcribed into functional RNA products. Bacterial genomes have more forms of redundancy and robustness buffering against changes. Human genomes have more forms of redundancy and robustness buffering against changes. 1&3 1&4 2&4 3&4 A random base change is less likely to affect a particular phenotype in humans than in bacteria. Why? 1. Only 2% of the human genome is transcribed into functional RNA products 2. Only 2% of the bacterial genome is transcribed into functional RNA products 3. Bacterial genomes have more forms of redundancy and robustness buffering against changes. 4. Human genomes have more forms of redundancy and robustness buffering against changes. O 1&3 O 1&4 O 2&4 3 & 4

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One of the following quadratic equations has no real solutions a. $x^2 - 3 = 0$ b. None c. $x^2 - 6x + 9 = 0$ d. $x^2 - 16 = 0$ e. $2x^2 - x = 0$ f. $x^2 + 2x + 2 = 0$

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timothy p.