An equal-tangent crest vertical curve is designed for 60 mph. The initial grade is 4.0% and the finalgrade is negative. What is the elevation difference between the PVC and the high point of the curve

What is the main objective of using reheat rankine cycle?

What is creep? what is stress relaxation?

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.