The root diameter of a double square thread is 0.55 in. The screw has a pitch of 0.2 in. Find the outside diameter, the number of threads per inch, and the lead.

1. Moment of inertia for a solid sphere of a given volume is hollow spherical shell of the same volume (greater/smaller) that of a

Please solve this question in hand writing step by step.

A flanged bolt coupling is used to connect a solid shaft 89 mm in diameter to a hollow shaft 100 mm in outside and 89 mm in inside diameter. If the allowable shearing stress in the shafts and the bolts is 66.2 MPa, how many 10-mm-diameter steel bolts must be used on a 191-mm- diameter bolt circle coupling so that the coupling will be as strong as the weaker shaft? Round off the final answer to three decimal places.