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A demonstration helps students understand a principle of roller coaster design.
Which answer choice correctly describes the ball’s kinetic and potential energy?
A. The ball has more potential energy at position X than at position Z.
B. The ball has more kinetic energy at position Y than at position W.
C. The potential energy and kinetic energy of the ball are equal at position X.
D. The potential energy and kinetic energy of the ball are greatest at position Z.
Answers: 1
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The picture below shows two galaxies. spiral galaxy and elliptical galaxy which of these statements best describes a similarity between the two galaxies? (2 points) both have elongated centers. both have centers shaped like bars. both change their shape from time to time. both are held together by gravitational forces.
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A demonstration helps students understand a principle of roller coaster design.
Which answer choice...
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