Ahot ball of gas in outer space that creates its own energy is called a
a. star
b. comet
c. planet
d. black hole

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Which example has gravitational potential energy? a. a horse slowing down from a run b. an apple about to fall from a tree branch c. a bicycle being pedaled down a horizontal path d. beaker sitting on the floor

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?