Ends A and D of the two solid steel shafts AB and CD are fixed, 175while ends B and C are connected to gears as shown. Knowing thata 4-kN ? m torque T is applied to gear B, determine the maximumshearing stress (a) in shaft AB, (b) in shaft CD.

Heat and Mass Transfer: Fundamentals & Applications Fourth Edition Yunus A. Cengel, Afshin J. Ghajar McGraw-Hill, 2011 Chapter 1 INTRODUCTION AND BASIC CONCEPTS Mehmet Kanoglu University of Gaziantep Copyright © 2011 The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Objectives • Understand how thermodynamics and heat transfer are related to each other • Distinguish thermal energy from other forms of energy, and heat transfer from other forms of energy transfer • Perform general energy balances as well as surface energy balances • Understand the basic mechanisms of heat transfer, which are conduction, convection, and radiation, a