In a compression test of a standard 2 by 2 by 8-in. douglas-fir specimen, the test data were as follows: load, lb. 0 | 5,000 | 10,000 | 15,000 | 20,000 | 25,000 | 30,000dial reading in 0.000 | 0.0085 | 0.0155 | 0.0225 | 0.0295 | 0.0365 | 0.0485the extensometer had a gage length of 6 in. and a multiplying factor of 2.compute the modulus of elasticity and the stress at the proportional limit. (5 points)

What is the chief metrological difference between measuring with a microscope and with an electronic comparator? a. the microscope is limited to small workpieces. a. the microscope is limited to small workpieces. c. the comparator can only examine one point on the workpiece. d. the microscope carries its own standard.

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed

The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal