High strength steels are being used to reduce weight on cars.

explain why using a high strength steel would allow you to reduce the weight of a component?

pick a high strength steel and heat treatment for that steel and provide the steel's yield strength and elongation (or fracture strength)?

describe at least two concerns you would have when replacing regular steel with high strength steel?

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.