For Day 2 Homework Cover Sheet Name:_________________________________________________ 1. Read Pages from 19-33, or watch the videos listed below.  Decimal Number System http://www.youtube.com/watch?v=ntpehqS5ejA (12 min)  Natural through Complex Numbers http://www.youtube.com/watch?v=MH946PzUGIg (13 min) 2. Attempt problems on workbook pages 3-6 Summary of the lectures you watched. List any parts of the video lecture (if there are any) that were unclear or you had trouble understanding. Please be specific and do not just say “All of it”. Questions you had difficulty with or felt stuck on- ALEKS topic number from this sheet that you were stuck on- ALEKS topics to be mastered (13 topics) Converting a decimal to a fraction: Basic Expanded form Expanded form with zeros Multiplication by 10, 100, and 1000 Numeral translation: Problem type 1 Numeral translation: Problem type 2 Whole number place value: Problem type 1 Whole number place value: Problem type 2 Writing a decimal and a fraction for a shaded region Writing a signed number for a real-world situation Writing ratios for real-world situations Decimal place value: Hundreds to ten thousandths Decimal place value: Tenths and hundredths

## For Day 2 Homework Cover Sheet Name:_________________________________________________ 1. Read Pages from 19-33, or watch the videos listed below.  Decimal Number System http://www.youtube.com/watch?v=ntpehqS5ejA (12 min)  Natural through Complex Numbers http://www.youtube.com/watch?v=MH946PzUGIg (13 min) 2. Attempt problems on workbook pages 3-6 Summary of the lectures you watched. List any parts of the video lecture (if there are any) that were unclear or you had trouble understanding. Please be specific and do not just say “All of it”. Questions you had difficulty with or felt stuck on- ALEKS topic number from this sheet that you were stuck on- ALEKS topics to be mastered (13 topics) Converting a decimal to a fraction: Basic Expanded form Expanded form with zeros Multiplication by 10, 100, and 1000 Numeral translation: Problem type 1 Numeral translation: Problem type 2 Whole number place value: Problem type 1 Whole number place value: Problem type 2 Writing a decimal and a fraction for a shaded region Writing a signed number for a real-world situation Writing ratios for real-world situations Decimal place value: Hundreds to ten thousandths Decimal place value: Tenths and hundredths

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ELEC153 Circuit Theory II M2A3 Lab: AC Series Circuits Introduction Previously you worked with two simple AC series circuits, R-C and R-L circuits. We continue that work in this experiment. Procedure 1. Setup the following circuit in MultiSim.The voltage source is 10 volts peak at 1000 Hz. Figure 1: Circuit for analysis using MultiSim 2. Change R1 to 1 k and C1 to 0.1 uF. Connect the oscilloscope to measure both the source voltage and the voltage across the resistor.You should have the following arrangement. Figure 2: Circuit of figure 1 connected to oscilloscope To color the wires, right click the desired wire and select “Color Segment…” and follow the instructions. Start the simulation and open the oscilloscope. You should get the following plot: Figure 3: Source voltage (red) and the voltage (blue) across the resistor The red signal is the voltage of the source and the blue is the voltage across the resistor. The colors correspond to the colors of the wires from the oscilloscope. 3. From the resulting analysis plotdetermine the peak current. To determine the peak current measure the peak voltage across the resistor and divide by the value of the resistor (1000 Ohms). Record it here. Measured Peak Current 4. Determine the peak current by calculation. Record it here. Does it match the measured peak current? Explain. Calculated Peak Current 5 Determine the phase shift between the current in the circuit and the source voltage. We look at the time between zero crossings to determine the phase shift between two waveforms. In our plot, the blue waveform (representing the circuit current or the voltage across the resistor) crosses zero before the red waveform (the circuit voltage). So, current is leading voltage in this circuit. This is exactly what should happen when we have a capacitive circuit. 6. To determine the phase shift, we first have to measure the time between zero crossings on the red and blue waveforms. This is done by moving the oscillator probes to the two zero crossing as is shown in the following figure Figure 4: Determining the phase shift between the two voltage waveforms We can see from the figure that the zero crossing difference (T2 – T1) is approximately 134 us. The ratio of the zero-crossing time difference to the period of the waveform determines the phase shift, as follows: Using our time values, we have: How do we know if this phase shift is correct? In step 4 when you did your manual calculations to find the peak current, you had to find the total impedance of the circuit, which was: Now, the current will be: Here, the positive angle on the current indicates it is leading the circuit voltage. 7. Change the frequency of the voltage source to 5000 Hz. Estimulate and perform a Transient Analysis to find the new circuit current and phase angle. Measure them and record them here: Measured Current Measured Phase Shift 8. Perform the manual calculations needed to find the circuit current and phase shift. Record the calculated values here. Do they match the measured values within reason? What has happened to the circuit with an increase in frequency? Calculated Current Calculated Phase Shift Writeup and Submission In general, for each lab you do, you will be asked to setup certain circuits, simulate them, record the results, verify the results are correct by hand, and then discuss the solution. Your lab write-up should contain a one page, single spaced discussion of the lab experiment, what went right for you, what you had difficulty with, what you learned from the experiment, how it applies to our coursework, and any other comment you can think of. In addition, you should include screen shots from the MultiSim software and any other figure, table, or diagram as necessary.

## ELEC153 Circuit Theory II M2A3 Lab: AC Series Circuits Introduction Previously you worked with two simple AC series circuits, R-C and R-L circuits. We continue that work in this experiment. Procedure 1. Setup the following circuit in MultiSim.The voltage source is 10 volts peak at 1000 Hz. Figure 1: Circuit for analysis using MultiSim 2. Change R1 to 1 k and C1 to 0.1 uF. Connect the oscilloscope to measure both the source voltage and the voltage across the resistor.You should have the following arrangement. Figure 2: Circuit of figure 1 connected to oscilloscope To color the wires, right click the desired wire and select “Color Segment…” and follow the instructions. Start the simulation and open the oscilloscope. You should get the following plot: Figure 3: Source voltage (red) and the voltage (blue) across the resistor The red signal is the voltage of the source and the blue is the voltage across the resistor. The colors correspond to the colors of the wires from the oscilloscope. 3. From the resulting analysis plotdetermine the peak current. To determine the peak current measure the peak voltage across the resistor and divide by the value of the resistor (1000 Ohms). Record it here. Measured Peak Current 4. Determine the peak current by calculation. Record it here. Does it match the measured peak current? Explain. Calculated Peak Current 5 Determine the phase shift between the current in the circuit and the source voltage. We look at the time between zero crossings to determine the phase shift between two waveforms. In our plot, the blue waveform (representing the circuit current or the voltage across the resistor) crosses zero before the red waveform (the circuit voltage). So, current is leading voltage in this circuit. This is exactly what should happen when we have a capacitive circuit. 6. To determine the phase shift, we first have to measure the time between zero crossings on the red and blue waveforms. This is done by moving the oscillator probes to the two zero crossing as is shown in the following figure Figure 4: Determining the phase shift between the two voltage waveforms We can see from the figure that the zero crossing difference (T2 – T1) is approximately 134 us. The ratio of the zero-crossing time difference to the period of the waveform determines the phase shift, as follows: Using our time values, we have: How do we know if this phase shift is correct? In step 4 when you did your manual calculations to find the peak current, you had to find the total impedance of the circuit, which was: Now, the current will be: Here, the positive angle on the current indicates it is leading the circuit voltage. 7. Change the frequency of the voltage source to 5000 Hz. Estimulate and perform a Transient Analysis to find the new circuit current and phase angle. Measure them and record them here: Measured Current Measured Phase Shift 8. Perform the manual calculations needed to find the circuit current and phase shift. Record the calculated values here. Do they match the measured values within reason? What has happened to the circuit with an increase in frequency? Calculated Current Calculated Phase Shift Writeup and Submission In general, for each lab you do, you will be asked to setup certain circuits, simulate them, record the results, verify the results are correct by hand, and then discuss the solution. Your lab write-up should contain a one page, single spaced discussion of the lab experiment, what went right for you, what you had difficulty with, what you learned from the experiment, how it applies to our coursework, and any other comment you can think of. In addition, you should include screen shots from the MultiSim software and any other figure, table, or diagram as necessary.

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A sample of 2 H gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. A sample weighing 9.49 g occupies __________ L at 353 K and 2.00 atm. A) 109 B) 54.7 C) 147 D) 68.2 E) 77.3

## A sample of 2 H gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. A sample weighing 9.49 g occupies __________ L at 353 K and 2.00 atm. A) 109 B) 54.7 C) 147 D) 68.2 E) 77.3

D) 68.2
Task 5 – Learning Outcomes 2.3 Determine heat transfer coefficient using experimental and tabulated data a. In an experimental result showed that air at 300 K and bulk velocity 10 m/s flows over a flat horizontal plate with a temperature of 1000 K at all points on its surface. Given that Nu=0.32Pr1/3 Re½ (Ta/Ts)0.117 Calculate the heat transfer rate from one side over the first 100 mm and the first 200 mm. Ta is the bulk air temperature and Ts is the surface temperature. Given that:

## Task 5 – Learning Outcomes 2.3 Determine heat transfer coefficient using experimental and tabulated data a. In an experimental result showed that air at 300 K and bulk velocity 10 m/s flows over a flat horizontal plate with a temperature of 1000 K at all points on its surface. Given that Nu=0.32Pr1/3 Re½ (Ta/Ts)0.117 Calculate the heat transfer rate from one side over the first 100 mm and the first 200 mm. Ta is the bulk air temperature and Ts is the surface temperature. Given that:

Solution   a)   Nu=0.32Pr1/3 Re½ (Ta/Ts)0.117 Pr=0.69 Re1=10/.1*1.788*10e-5 Ta=1000, … Read More...
A sample of 2 H gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. A sample weighing 9.49 g occupies __________ L at 353 K and 2.00 atm. A) 109 B) 68.2 C) 54.7 D) 147 E) 77.3

## A sample of 2 H gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. A sample weighing 9.49 g occupies __________ L at 353 K and 2.00 atm. A) 109 B) 68.2 C) 54.7 D) 147 E) 77.3

B) 68.2
A company produces bag, each of which could be sold for\$150. It has a fixed monthly cost of \$13,000 and a variable cost of \$20 per bag produced. A. Determine the company monthly total cost function B. determine the company’s monthly revenue function C determine the company’s monthly total profit function D how many bag must the company produce to break even E how many bags must the company produce to generate \$26,000 in profit? Compute A log 100 B log 1000 C log2 8 D log5. 25 E log 0.01 F log 1 G loga a