assuming a high value residential with 100 people in percentage and annual growth rate of 20% metered with uniform tariff . determine the maximum daily water demands after 5 years that includes fire with duration flow of 4min what will be the storage capacity in this residential area . assume no water losses

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.

Ahelical coil spring has a mean diameter of 50 mm, a wire diameter of 5.5 mm and is wound with a pitch of 10 mm. the spring steel has an ultimate strength of 1250 mpa. find the force needed to compress the spring solid and the wire stress in this condition. state whether the spring will return to its initial length.