A ball is kicked straight up. The ball's speed decreases as it moves upward. Why does the ball's speed decrease?
A ) Because a force given to the ball by the kick becomes equal to the force of gravity
O Because one or more forces are acting to slow the ball down
O Because a force given to the ball by the kick completely runs out
O Because a force given to the ball by the kick becomes less than the force of gravity

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.