Steam at 7 bar, dryness fraction 0.9, expands reversibly at constant pressure until the temperature is 200 °c. calculate the work input and heat supplied per unit mass of steam during the process.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

What determines the amount of inertia an object has

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?