ESSENTIALS OF COLLEGE PHYSICS provides a clear and logical presentation of the basic concepts and principles of physics without sacrificing any of the problem-solving support or conceptual understanding you will need. The powerful and interactive PhysicsNow™ is an online resource that uses a series of chapter-specific diagnostics to gauge your unique study needs, then provides a Personalized Learning Plan that maximizes your study time by focusing on the concepts you need to review most. PhysicsNow™ also allows you to access Personal Tutor with SMARTHINKING, a live web-based tutoring service. Personal Tutor with SMARTHINKING features two-way audio, an interactive whiteboard for displaying presentation materials, and instant messaging for easy communication with your personal tutor.