Your task is to perform a simple study on three (3) precious metals and the application of these precious metals in multiple usage other than jewelleries. the content of each process should include the following (not exclusively): i. brief introduction ii. materials in discussion, brief explanation on the characteristics and availability iii. products that use the said materials in (ii), and the specific functionality of the material in the product. iv. any related images

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false