Q34 If the surface tension of water is 0.06N/m, then the capillary rise in a tube of a diameter 1mm is :(0 = 0°)

A compound shaft consists of a titanium alloy [G = 6,200 ksi] tube (1) and a solid stainless steel [G = 11,500 ksi] shaft (2). Tube (1) has a length of L1 = 50 in., an outside diameter of D1 = 2.55 in., and a wall thickness of t1 = 0.160 in. Shaft (2) has a length of L2 = 52 in. and a diameter of d2 = 1.35 in. If an external torque of TB = 520 lb·ft acts at pulley B in the direction shown, calculate the torque TC required at pulley C so that the rotation angle of pulley C relative to A is zero.

Q2) Figure Q2 shows a 30-kg block is connected to block B through a frictionless pulley. The coefficient of static friction for the contact surfaces is 0.35. (i) (ii) Determine the mass value of block B when the impending motion of block A is down the plane. Determine the mass value of block B when the impending motion of block A is up the plane. 20⁰ А μs=0.35 Figure Q2 B

Q2)A filament 0.5m long and having a cross-sectional area of 1mm2 was stretched to breaking. If the breaking stress for the filament was found to be 109 Pa, calculate the mass which was hung on the filament to break it. Assuming the filament stretched linearly up to breaking, calculate the amount by which the filament stretched. (Young’s modulus for the material = 6 x 1010 Pa) If the assumption in (b) was justified, what might the material have been? State in one word.