You start with spring that's already been stretched an unknown amount from equilibrium. After stretching it an additional 2.0 cm, you find that the total potential energy associated with the spring is 18 J. You stretch it another 2.0 cm, and now the potential energy rises to 25 J. Find the spring constant. Express your answer with the appropriate units. ? k = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 25 attempts remaining • Part B Find the initial stretch. Express your answer with the appropriate units. HẢ Value Units

You start with spring that's already been stretched an unknown amount from equilibrium. After stretching it an additional 2.0 cm, you find that the total potential energy associated with the spring is 18 J. You stretch it another 2.0 cm, and now the potential energy rises to 25 J. Find the spring constant. Express your answer with the appropriate units. ? k = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 25 attempts remaining • Part B Find the initial stretch. Express your answer with the appropriate units. HẢ Value Units

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 63AP: A roller-coaster car of mass 1.50 103 kg is initially at the top of a rise at point . It then moves...

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In an iconic movie scene, Forrest Gump (https://openstaxcollege.org/l/21ForrGumpvid) runs around the country. If he is running at a constant speed of 3 m/s, would it take him more or less energy to run uphill or downhill and why?
“ E=K+Uconstant is a special case of the work energy theorem.” Discuss this statement.
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