Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth

Based on Dominance for a heterozygous cross 75% of the offspring would have the dominant phenotype For a homozygous cross it would 100%.

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.