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College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Question:** As you go down a rough slide and speed up, the energy transformation is _____. **Answers:** - \( U_g \rightarrow K + E_{th} \) - \( K \rightarrow U_g \) - \( U_g \rightarrow K \) - Not enough information - \( K \rightarrow E_{th} \) - \( U_q \rightarrow E_{th} \) **Explanation:** This question involves understanding energy transformations that occur while moving down a slide. - \( U_g \) represents gravitational potential energy. - \( K \) represents kinetic energy. - \( E_{th} \) represents thermal energy. As you go down a rough slide, gravitational potential energy (\( U_g \)) is converted to kinetic energy (\( K \)) as you speed up, and some of this energy is also transformed into thermal energy (\( E_{th} \)) due to friction. Therefore, the correct transformation is \( U_g \rightarrow K + E_{th} \).
Transcribed Image Text:**Question:** As you go down a rough slide and speed up, the energy transformation is _____. **Answers:** - \( U_g \rightarrow K + E_{th} \) - \( K \rightarrow U_g \) - \( U_g \rightarrow K \) - Not enough information - \( K \rightarrow E_{th} \) - \( U_q \rightarrow E_{th} \) **Explanation:** This question involves understanding energy transformations that occur while moving down a slide. - \( U_g \) represents gravitational potential energy. - \( K \) represents kinetic energy. - \( E_{th} \) represents thermal energy. As you go down a rough slide, gravitational potential energy (\( U_g \)) is converted to kinetic energy (\( K \)) as you speed up, and some of this energy is also transformed into thermal energy (\( E_{th} \)) due to friction. Therefore, the correct transformation is \( U_g \rightarrow K + E_{th} \).
As you go down a slide at a constant speed, the energy transformation is _____. **Answers:** - \( K \rightarrow U_g \) - \( U_g \rightarrow K \) - \( K \rightarrow E_{th} \) - \( U_g \rightarrow E_{th} \) - not enough information - \( U_g \rightarrow K + E_{th} \) **Explanation:** This question prompts consideration of how energy transforms as a person descends a slide at constant speed. The correct transformation will involve potential energy (\( U_g \)), kinetic energy (\( K \)), and thermal energy (\( E_{th} \)). The options represent different energy transformations from gravitational potential energy (due to height) to kinetic energy (due to motion) and thermal energy (due to friction).
Transcribed Image Text:As you go down a slide at a constant speed, the energy transformation is _____. **Answers:** - \( K \rightarrow U_g \) - \( U_g \rightarrow K \) - \( K \rightarrow E_{th} \) - \( U_g \rightarrow E_{th} \) - not enough information - \( U_g \rightarrow K + E_{th} \) **Explanation:** This question prompts consideration of how energy transforms as a person descends a slide at constant speed. The correct transformation will involve potential energy (\( U_g \)), kinetic energy (\( K \)), and thermal energy (\( E_{th} \)). The options represent different energy transformations from gravitational potential energy (due to height) to kinetic energy (due to motion) and thermal energy (due to friction).
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