Convert a 1:100,000 RF to a graphic scale.
What will be an ideal response?What will be an ideal response?
Solutions will vary. Students should calculate and draw a graphic scale, such as the
following calculations and graphic scale shown in Figure RS3–6.
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List the six major structural components of the greenhouse and provide a function for each
What will be an ideal response?
An Australian steel company, ASM International, claims that a savings of 40% of the cost of stainless steel threaded bar can be achieved by replacing machined threads with precision weld depositions. A U.S. manufacturer of rock bolts and grout-in-fittings plans to purchase the equipment. A mechanical engineer with the company has prepared the following estimates for additional costs and savings over the next 4 years (16 quarters). Costs decrease for some time, then increase rapidly as the equipment ages. Savings peak at $80,000 for some quarters, but then decrease as expected competition takes its toll. The U.S. manufacturer president is not sure of the time frame to plan for the use of this new technology. The decision, in part, rests upon the rate of return achievable as the
years of use progress. In the past, projects must return at least 24% per year to be retained.
(a) Determine the expected rate of return per quarter for 2 years (8 quarters) and beyond using a spreadsheet.
(b) Plot i* versus quarter to graphically illustrate your results.
(c) Make a recommendation on the number of years to use the technology to economic advantage.
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An npn transistor with a ? of 220 has an IB of 110 ?A. The emitter current (IE) is
A) 243.10 mA B) 110 ?A C) 24.20 mA D) 24.31 mA
A system is described by 
Classify the system as to linearity, time invariance, memory, causality, and stability.
What will be an ideal response?