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susana davis

susana d.

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time limit per test: 1 second memory limit per test: 256 megabytes Amadoo and Lashin, brilliant students in Math Problem Solving, have the ability to solve many of problems challenge. They always compete with each other to solve the most difficult challenges. One day Lashin challenge Amadoo to solve a problem challenge that include: "Let the initial population of a city be $(N_0)$ millions. If $N(t)$ is the number of inhabitants in millions and $t$ is the time in years. Determine the differential equation considering that the rate at which the population of this city is growing per year, is proportional to the product of its population and the difference of its population from $L$ millions. Consider that the proportionality constant is $A$.Find the long term prospects of this population, as predicted by this model, after $t$ years and after very long time $(t \rightarrow \infty)$". You must Help Amadoo to solve this problem. Input The first line contains $m(1 \le m \le 10^3)$, the number of the testcases. The first line of each test case contains $N_0$, $A$, $L$ $(1 \le N_0, A, L \le 10)$, the initial population, proportionality constant, and maximum capacity. The second line of each test case contains a decimal number $t$ $(0 \le t \le 1)$. Output The first line is a single integer: $lim_{t \rightarrow \infty} N(t)$, the long-term population in millions. The second line consists of $N(t)$, the population at the given times in millions, rounded to the nearest integer. Example input 1 2 2 8 0.190283 output 8 7 Copy Copy

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11 Question 2.d) How many non-hydrogen atoms would you predict to have a molecular geometry of trigonal planar? The value must be a number 12 Question 2.e) How many non-hydrogen atoms would you predict to have a molecular geometry of trigonal pyramidal? The value must be a number 13 Question 2.f) How many non-hydrogen atoms would you predict to have a molecular geometry of tetrahedral? The value must be a number

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A chemist weighed out of tungsten. Calculate the number of moles of tungsten she weighed out.

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Which of the following is NOT one of the eight types of intelligence proposed by Gardner's theory of multiple intelligences? Question 10 options: musical intelligence practical intelligence linguistic intelligence bodily-kinesthetic intelligence

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2 Gordon Rosel went to his bank to find how long it will take for $1,200 to grow to $1,650 at 8.0% simple interest. Round time in years to the nearest tenth. 3 4 Invested amount $1,200 5 Accumulated value $1,650 6 Interest rate 8% 7 8 Required: 9 Using the above information please answer the following: 10 11 Note: Use cells A4 to B6 from the given information to complete this question. 12 13 1. How much will Gordon earn in interest each year (simple interest)? 14 2. How many years will it take for $1,200 to grow to $1,650 at 8.0% simple interest? 15 16 17

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The diagram shows part of the graph of $y = \frac{5}{x}$. The area of the shaded region is 10 units. Calculate, by hand, the exact value of $a$. a =

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Task 4 (20p) A 4-cylinder, 3.0-liter compression ignition (CI) engine operates on an air-standard DUAL Cycle as illustrated in the figure. It runs on light diesel fuel and at an air-fuel ratio of 18:1. It is assumed that half the fuel is burned at constant volume and another half at constant pressure. Compression ratio of the engine is 14:1. At the start of the compression stroke, conditions in the cylinders are 60°C and 101 kPa. Assume no exhaust residual from previous cycle. Given: - Combustion efficiency $\eta_c$ = 100% - Heating value of light diesel $Q_{HV}$=42500 kJ/kg Calculate: 4.1 Temperature and pressure at each states 1, 2, x, 3, and 4 4.2 Cutoff ratio, pressure ratio, and thermal efficiency.

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Qno4: If $V_1 = 10Cos20t$ mV and $V_2 = 0.5 \ t^2$ mV are the inputs of integrator and differentiator circuits with $R_i = R_f = 100 \ k\Omega$ and $C_i = C_f = 2\mu f$. Calculate the output for both circuits?

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Which of the following describes the English spoken in England at the time of the Norman conquest? ? Early Middle English Middle English Old English Early Modern English

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b. The circuit in Figure 4(b) shows a capacitor in parallel with an unknown component Z. The instantaneous supply voltage and instantaneous supply current are as follows: v(t) =150 sin 3000t V and i((t) = 16.5 sin (3000t + 72.40) A. i. Determine the phasor values of the currents $I_1$ and $I_2$. ii. Hence determine the value of the component Z.

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