A block slides down a frictionless plane having an inclination of 15.0°. The block starts from rest at the top, and the length of the incline is 2.00 m. Find its speed when it reaches the bottom of the incline.

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.