Highway curves are marked with a suggested speed. If this speed is based on what would be safe in wet weather, estimate the radius of curvature for an unbanked curve marked 80 km/h . Express your answer to one significant figure and include the appropriate units. r= __________ _____________ 10.) A spring has a spring stiffness constant kk of 70.0 N/m. How much must this spring be compressed to store 50.0 JJ of potential energy?
Highway curves are marked with a suggested speed. If this speed is based on what would be safe in wet weather, estimate the radius of curvature for an unbanked curve marked 80 km/h . Express your answer to one significant figure and include the appropriate units. r= __________ _____________ 10.) A spring has a spring stiffness constant kk of 70.0 N/m. How much must this spring be compressed to store 50.0 JJ of potential energy?
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: Motion In Two Dimensions
Section: Chapter Questions
Problem 4.11OQ
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9.) Highway curves are marked with a suggested speed. If this speed is based on what would be safe in wet weather, estimate the radius of curvature for an unbanked curve marked 80 km/h . Express your answer to one significant figure and include the appropriate units.
r= __________ _____________
10.) A spring has a spring stiffness constant kk of 70.0 N/m. How much must this spring be compressed to store 50.0 JJ of potential energy?
Express your answer to three significant figures and include the appropriate units.
x= ___________ ________________
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