What is the approximate mass of air in a living room 4.8 m × 3.8 m × 2.8 m?
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ANSWER: The mass of the book is 2 kg. The height of the table is 0.75 m. When you lift the book upwards, the work is done by you and considered as a positive work, because you did work against gravity. When you bring the book downward, the work is done by the book and also considered as negative work, because you did the work for gravity. These are the ways we have defined gravitational potential energy has defined. a) work done by gravity on the book You took the book to a bookshelf 2.3 m above the floor. So the net displacement for the book while taking it up is, 2.3 0.75 = 1.55 meters. The force you have applied on the book...
Textbook: Physics: Principles with Applications
Author: Douglas C. Giancoli
Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. Since the solution to 2P from 10 chapter was answered, more than 354 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 2P from chapter: 10 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. The answer to “What is the approximate mass of air in a living room 4.8 m × 3.8 m × 2.8 m?” is broken down into a number of easy to follow steps, and 19 words. This full solution covers the following key subjects: Book, much, work, floor, gravity. This expansive textbook survival guide covers 35 chapters, and 3914 solutions.