Determine whether the block shown is in equilibrium and find the magnitude and direction of the friction force when e = 35° and P =200 N. 800 N Hs = 0.20 Hk = 0.15 25°

A circular hole is to be punched in a plate that has a shear strength of 40 ksi. The working compressive stress for the punch is 50 ksi. Determine: a) The maximum thickness in inches of a plate in which a hole 2.5 in. in diameter can be punched. b) If the plate is 0.25 in. thick, determine the diameter in inches of the smallest hole that can be punched. Note: Draw the Free Body Diagram, include the units/dimensions, use the proper formula and round-off all the answers and final answers to 3 decimal places.

The copper pipe shown in the figure has an outside diameter of 4.000 in. and a wall thickness of 0.363 in. The pipe is subjected to a uniformly distributed torque of t = 80 lb-ft/ft along its entire length. Using a = 2.00 ft, b = 4.00 ft, and c = 7.5 ft, calculate (a) the shear stress at A on the outer surface of the pipe. (b) the shear stress at B on the outer surface of the pipe. a b Answers: (а) ТА i psi (b) Тв- i psi

1) A brass pipe with a 0.5inch inside diameter and 1/16 inch wall is twisted using a 14inch long pipe wrench. If a load of 74 lbs is applied perpendicularly to the end of the wrench. If the E of brass is 14.6x10^6 psi, what is the max torsion stress in the pipe? • Find the outside diameter of the pipe using the ID and given wall thickness. • Find the polar moment of inertia of the cross-section of the pipe. • Find the torque being applied to the pipe, via the wrench. • Use the torsional stress equation to find the requested stress. Compare your answer: Max Torsional Stress 36.61 ksi