Problem #4: The device is used to measure the change in temperature. Bars AB and CD are made of A-36 steel and 2014-T6 aluminum alloy respectively. When the temperature is at 40 °C, ACE is in the horizontal position. Determine the vertical displacement of the pointer at E when the temperature rises to 80 °C. 6 mm 72 mm 36 mm

The special box wrench with head B swiveled at C to the handle A will accommodate a range of sizes of hexagonal bolt heads. For nominal size shown where the center O of the bolt and the pin C are in line with the handle, compute the magnitude of the force supported by the pin at C if P = 160 N. Assume the surface of the bolt head to be smooth. 30 mm 120 mm A 300

Analytically determine the linear displacement of the piston in the compressor linkage shown, as the 40 mm crank is rotated from its current position 60° counterclockwise. 40 mm 30⁰ crank 90 mm piston $1

A left hand threaded 14 mm diameter A36 steel bolt is stuck in a metal block. Assume the bolt head is flush with the block surface at A. In order to remove the bolt the 50 Nm torque is applied to the bolt head as shown. The block applies a resisting torque "t" to the stuck threads which is assumed to be uniformly distributed along the 50 mm buried depth. G = 75 GPa a) Explain the difference between right and left hand threaded bolts Determine: b) The magnitude of the uniform resisting torque "t" (including proper units) c) The internal torque as a function of x measured from B (a FBD is required) d) The maximum shear stress in the bolt Ans: 92.8 MPa e) The angle of twist of bolt head A with respect to end B Ans: 0.0044 rad f) The largest torque that can be applied to the bolt head before it twists off (Tyield = 150 MPa) %3D

If the resultant force acting on the bracket shown in (Eigure 1) is to be 690 N directed along the positive az axis, determine the magnitude of F and its direction 0. Figure 325 N 13 12 0 45° 600 N 1 of 1 Part A Determine the magnitude of F Express your answer to three significant figures and include the appropriate units. F= Submit Part B #A Value 3 Request Answer ANL → Units C ? Determine the direction of F Express your answer in degrees to three significant figures.

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