Questions asked
Multiple Choice 1 point The shell of a mollusc is comprised by three different layers called periostracum, conchiolin and nacre procuticle, exocuticle and endocuticle periostracum, prismatic layer and nacre radula, chitin and spicule
Find the slope of the tangent line to the parabola y=x^2+2x at the point (−6,24).
Q1 (10 points) Find the Thevenin equivalent with respect to the terminals a-b for the circuit below a 20 $\Omega$ + 20 V b 10 $\Omega$ 20 $\Omega$ 10 $\Omega$ 5 A 10 $\Omega$ 10 $\Omega$ + 30V
Assume you begin with 10g of a radioactive isotope. How many grams will be present after 3 half-lifes?
18. \( \Delta \) A cylinder containing 10.0 L of helium gas at a pressure of 165 atm is to be used to fill toy balloons to a pressure of 1.1 atm . Each inflated balloon has a volume of 2.5 L . What is the maximum number of balloons that can be inflated? (Remember that 10.0 L of helium at 1.1 atm will remain in the "exhausted" cylinder.)
indent Learner P. 9.13 L Question 18 5 pts 12 A 362 L tank holds helium gas at 225 K with a pressure of 2.19 atm . How many moles of gas are in the tank? 34.1 moles 453,000 moles \( 2,170,000 \) moles 42.9 moles
Question content area top Part 1 The marginal revenue product of labour is the revenue Question content area bottom Part 1 A. generated to cover the cost of hiring an additional unit of labour. B. needed to hire an additional unit of labour. C. generated by employing an additional unit of labour. D. generated from selling an additional unit of output. E. needed to cover the cost of producing an additional unit of output.
3. Mrs. Black owns 400 hectares of farm land. She practices organic farming to produce natural foods. She limits her production of wheat to a minimum of 300 hectares and her production of potatoes to a maximum of 200 hectares. She also grows at least as much wheat as potatoes. If the production of wheat generates $400 of profit per hectare and the production of potatoes $300 per hectare, how much of each should Mrs. Black produce in order to maximize profit?
Find the charge on the capacitor in an LRC-series circuit when $L = \frac{1}{2} h$, $R = 10 \Omega$, $C = 0.01 f$, $E(t) = 150 V$, $q(0) = 1 C$, and $i(0) = 0 A$. q(t) = What is the charge on the capacitor after a long time?
7. Use u substitution to evaluate the integral. Show work and select the correct answer.\\ $\int e^{5x} dx$\ a) $e^{5x}/5$\ b) $e^{5x}/5 + C$\ c) $5e^{5x}$\ d) $5e^{5x} + C$
