Discover new knowledge and insights with IDNLearn.com's extensive Q&A database. Ask anything and get well-informed, reliable answers from our knowledgeable community members.
Eva is in a closed, dark room. She uses her arm muscles to turn on a lamp. When she moves her hand closer to the lamp, the light heats her hand. The light bounces off the pages of a book and into her eyes. If this room is a closed system, what happens to the total amount of energy in the room? A. It increases, then decreases. B. It increases. C. It decreases. D. It remains constant.
If the room is really 'closed', so that there's no way for energy to get in or out of it, then the total amount of energy in the room is constant. Energy can't be manufactured in there, and it can't be burned up or otherwise made to disappear, regardless of what's going on in the room.
We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. IDNLearn.com is committed to providing the best answers. Thank you for visiting, and see you next time for more solutions.
