If planet A and B are both circling around star A and A completes an orbit in 2 days while B needs 10 days, then what
is the radius of B's orbit if that of A is 3.0 x 10^8 m (in meters)?

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

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answera compound;