During a 5.0-second interval, an object with a mass of 8.0 kg changes velocity from 25 meters per second east to 15 meters per second east. Determine the magnitude and direction of the object’s acceleration.

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.