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Physics 9 Online
OpenStudy (anonymous):

compared to the pendulum's kinetic energy at position B , its gravitational potential energy at position A is a. half as great 2. twice as great 3. the same 4. four times as great

OpenStudy (xishem):

We need diagrams or pictures or something.

OpenStudy (anonymous):

|dw:1328056979420:dw|

OpenStudy (anonymous):

b is the second circle and a is the third circle

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