Engineering 103

Home Work 3

Name_________________________

Due date__________________________

Turn in hard copies

Problem solving and idea generation. These designs should pass the “conceptual test”, i.e., after seeing the drawings, the reader can agree prototypes based on these designs will possibly work. A good design should be able to solve at least one anticipated problem.

1.- Develop a method to save energy by reducing or eliminating traffic congestion, be specific and include all details. A diagram is required.

2.- Global economy is a fact, it is expected that the volume of freight to be moved from countries to countries, continents to continents will increased drastically in the near future. Design a method to get freights to their destinations more quickly. This will also reduce environmental and other problems. Explain and include a diagram.

Estimation: you can only research for ‘obvious data’ such as the air density, and the number of students in each sections of the freshman English class at UMB. Then show calculations leading to your estimates. These calculations are worth at least 75% of credits.

3.- Estimate the total mass of air that passes through your lungs each day

4.- Estimate the number of books checked out of Healey Library each week

LABVIEW: Consult your LabView manual when necessary.

5.- Create a VI that solve the circuit shown. Inputs: V (Battery Voltage) , R1 and R2. Outputs: I (total current) and V2 (Voltage across R2).

All needed formulas: I=V/(R1+R2) ; V2=I*R2 (or V2=V-I*R1). Set V=9V; R1=2 Ohm; R2= 2 Ohm. Run VI. No credit will be awarded without numerical results shown in Front Panel. Include your name and date in a text box in the Front Panel and Block Diagram, and paste a copy of both into your Word file (large pictures will increase file size, so use a moderate size).

Figure for problem 8 Figure for problem 9

6.- Create a VI that solve the circuit shown. Inputs: V (Battery Voltage) , R1 and R2. Outputs: I (total current) and I2 (Current across R2).

All needed formulas: I=V/(R1*R2/(R1+R2)) ; I2=V/R2. Set V=9V; R1=2 Ohm; R2= 2 Ohm. Run VI. No credit will be awarded without numerical results shown in Front Panel. Include your name and date in a text box in the Front Panel and Block Diagram, and paste a copy of both into your Word file (large pictures will increase file size, so use a moderate size).