Engineering Answers

A sports apparel company has received an order for a college basketball team’s national championship T-shirt. The company can purchase the T-shirts from textile factories in Mexico, Puerto Rico, and Haiti. The shirts are shipped from the factories to companies in the United States that silk-screen the shirts before they are shipped to distribution centers. Following are the production and transportation costs ($/shirt) from the T-shirt factories to the silk-screen companies to the distribution centers, plus the supply of T-shirts at the factories and demand for the shirts at the distribution centers. Determine the optimal shipments to minimize total production and transportation costs for the apparel company

Consider the following register transfer statements for two 4-bit registers R1 and R2.

xT: R1← R1^ R2

x' T: R1 ← R2

Every time that variable T = 1, either the content of R2 is added to the content of Rl if 

x = 1, or the content of R2 is transferred to R1 if x = 0. Draw a diagram showing the 

hardware implementation of the two statements. Use block diagrams for the two 4-bit 

registers, a 4-bit adder, and a quadruple 2-to-1-llne multiplexer that selects the inputs 

to R l . In the diagram, show how the control variables x and T select the inputs of the 

multiplexer and the load input of register R1.

Consider the following register transfer statements for two 4-bit registers R1 and R2.

xT: R1← R1^ R2

Draw circuit to p:T R1<-R1^R2

What is C Language?

A rod, which tapers uniformly from 40 mm diameter to 20 mm diameter in a length of 400 mm,

is subjected to an axial tensile load of 5000 N. If E = 2.1 × 105 N/mm2

, find the extension of the

rod.