In the figure, rigid bar ABC is supported by axial member (1), which has a cross-sectional area of 400 mm², an elastic modulus of E= 70 GPa, and a coefficient of thermal expansion of a = 22.5 x 10-6 /°C. The temperature rises 48°C causing deformation at pt. B. Determine the deflection at pt. C?

Round off the numbers in the following problems to three significant figures. Find the percent difference between each rounded-off number and the original number by using the original number as the reference.        26.394

d) Determine the factor of safety n. Enter your answer to 2 decimal places.

Please look at the images for details about the question and the needed diagram. Make sure to include 2 places after the decimal point.

2. Thermal Efficiency a. Planet Express Generating Station in New York, NY uses 8720 Btu of energy to generate each kilowatt hour of electricity. Find its thermal efficiency. Express as a percentage with no decimal point. b. Mystery Shack Generating Station in Gravity Falls, OR has a thermal efficiency of 43%. How many million cubic feet (MMcf) of natural gas are needed to generate 560 megawatt hours of electricity? Round to the nearest hundredth.

A glue-laminated timber beam is reinforced by carbon fiber reinforced plastic (CFRP) material bonded to its bottom surface. The cross section of the composite beam is shown in figure below. The elastic modulus of the wood is E= 12 GPa and the elastic modulus of the CFRP is 112 GPa. The simply supported beam spans L = 6 m and carries a concentrated load P = 4.4 kN at midspan, see figure below. A If b₁ = 81 mm and b₂ = 35 mm determine: L/2 B L/2 C CFRP b₁ b₂ 250 mm 3 mm