Second Law of Thermodynamics — Cumulative exam Answers
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Hannah made a chart to describe speed and velocity.
Switch the chart headings “Speed” and “Velocity.”
OptionDescribe the calculation for speed as “dividing distance by time.”
OptionIn the “Speed” column, change “has magnitude” to “is a displacement.”
OptionChange the last row of the “Velocity” column to “does not depend on a reference frame.”
Option25
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A spring that has a spring constant of 1400 N/m is stretched to a length of 2.5 m. If the normal length of the spring is 1.0 m, how much elastic potential energy is stored in the spring?
700 J
Option1050 J
Option1575 J
Option4375 J
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