Numerade

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Decide whether the equality is an example of the commutative, associative, or distributive property. $8 \cdot (3 \cdot 24) = (8 \cdot 3) \cdot 24$

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Physiological reflex control pathways are mediated by both the endocrine and nervous system. What characteristic is typical of endocrine, but not neural, control

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The converter shown below has an output voltage of 5.00 V. The load is a 10.00-Ω resistor. Duty cycle, $D = (10 + 4 + 1 + 8 + 3 + 2) \%$ Assume that all components are ideal. Determine the following: (a) The input voltage, $V_{in}$. [Please state the value in V.] (b) The average input current, $I_{in\_av}$. [Please state the value in A.] (c) The input power, $P_{in}$. [Please state the value in W.] (d) The output current, $I_{out}$. [Please state the value in A.] (e) The output power, $P_{out}$. [Please state the value in W.]

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A simple gas turbine fitted with a recuperator having an effectiveness of 60%. The surrounding temperature is 35 °C, The temperature of the combustor exit is 840 °C, with components performance given in the following table: | | Efficiency % | Pressure ratio | Cp (kJ/kg.K) | Y | QR (kJ/kg) | |---|---|---|---|---|---| | Compressor | 70% | 4.25 | 1.02 | 1.4 | | | Combustor | 97% | 0.90 | 1.1 | | 42,000 | | Turbine | 80% | | 1.12 | 1.37 | | Find: a- the power output, efficiency and SFC of the gas turbine if air flows into the engine at 0.25 kg/s. b- If the fuel cost is 3.65 SR/kg and the annual operation of the engine is 5000 hrs, what would be the annual saving in fuel cost if the recuperator effectiveness is improved to 75% ? Note: Sketch all engines indicating the all states. Also State your assumptions.

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2. Based on circuit in Figure 2, determine $i_x$ using the superposition principle 40$\angle$ 0$^\circ$ V + j3 ? 30$\angle$ 45$^\circ$ V +1 $i_x$ 3 ? 5 ? -j4 ? j6 ? Figure 2 (30 marks)

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Pre-Lab oratory Assignment 1 Describe the safety precautions you must take when removing the flask from the boiling-water bath. 2 A student doing this experiment collected the following data: temperature of boiling water $99.7^\circ C$ volume of water pulled into the flask 30.0 ml temperature of water in ice-water bath $0.1^\circ C$ volume of flask 134.0 ml. barometric pressure 28.5 in. Hg vapor pressure of water at $0.1^\circ C$ 4.6 torr (a) Find the volume of wet, cold air. (b) Convert the barometric pressure from inches of Hg to torr (c) Calculate the pressure of dry, cold air.

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Write the solution set of the given homogeneous system in parametric vector form.\ 4x_1 + 4x_2 + 8x_3 = 0\ -8x_1 - 8x_2 - 16x_3 = 0\ -6x_2 - 6x_3 = 0\ where the solution set is $x = \begin{bmatrix} x_1\\x_2\\x_3 \end{bmatrix}$\ x = x_3\ (Type an integer or simplified fraction for each matrix element.)

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Garcia Production, Inc. has the following information from the most recent fiscal year. Costs based on a percent of sales are variable costs and all other costs are fixed costs. Sales (4,000 units) $4,000,000 Cost of goods sold (24% of sales) 960,000 Store supervisor's annual salary 260,000 Annual general and administrative costs 280,000 Annual selling costs 40,000 Sales commissions (5% of sales) 200,000 What type of cost estimation method is being used by the company?

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H (s) = \frac{200s}{s^2+110s+1000} H_{dB} = 6.1 dB H_{dB} = 46.02 dB H_{dB} = 200 dB H_{dB} = 1000 dB

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(a) Given the graph of $y = \tan(t)$ in the figure below, move the points to graph the tangent function with the given properties: \begin{itemize} \item Vertical asymptotes at every odd integer multiple of $\frac{\pi}{2}$. \item Passing through the points $(0, -2)$ and $(\frac{\pi}{4}, -4)$. \end{itemize} (b) Use your graph to find a possible formula for the transformed function of the form $f(t) = A \tan(Bt) + C$. $f(t) = $

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jose antonio h.