Part 1 Section 1: Illustrate a design of your Rube Goldberg Device using objects you already have in your home
since you will need to build it later. Your illustration/diagram should include the items listed in the checklist
within the lesson. You may choose to draw it freehand and scan or photograph the drawing, or you may use a
computer program to digitally create your device.
Place your illustration/diagram below.
Section 2: Answer the analysis and reflection questions below.
1. Describe your rationale for selecting the materials and structure of your device. How did your choices
support the criteria and constraints of your design?
2. Select two energy conversions in your device and explain the forms of energy involved in those
conversions.
3. Describe any energy transfers at the particle level that can be observed.
4. What type of system does your Rube Goldberg device represent? Describe the conversions in your
device that support your answer.
5. Explain how your Rube Goldberg device design follows the law of conservation of energy

1. the materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. she knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to carry a kilogram of resin in inventory. she also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four (4) days.2. at what point should resin be reordered? a. 0 kilograms remainingb. 50 kilograms remainingc. 200 kilograms remainingd. 400 kilograms remaininge. 500 kilograms remaining3. if order size was 1,000 kilograms of resin, what would be the length of an order cycle? a. 0.05 daysb. 4 daysc. 16 daysd. 20 dayse. 50 days4. if the order size was 1,000 kilograms of resin, what would be the average inventory level? a. 50 kilogramsb. 200 kilogramsc. 500 kilogramsd. 800 kilogramse. 1,000 kilograms5. if the order size was 1,000 kilograms of resin, what would be the daily total inventory costs, excluding the cost of the resin? a. $5b. $10c. $20d. $25e. $40

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.

Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes: