How does human capital contribute to development? A skilled workforce encourages foreign investment. Financiers lend money to developing countries. People invest their money in local resources for growth.

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

A21-tooth spur pinion mates with a 28-tooth gear. the diametral pitch is 3 teeth/in and the pressure angle is 20°, find the following values: the addendum, dedendum, circular pitch, tooth thickness, and base circle diameters.

State the stress optic law in two dimension and obtain an expression for the same.