Assume that a person pouncing a ball represents a closed system. Which statement best describes how the amounts of the ball's potential and kinetic
energy change?
A. Both the kinetic and potential energy of the ball increase.
B. The ball's kinetic energy increases as it falls and its potential
energy decreases.
C. Both the kinetic and potential energy of the ball decrease.
D. The ball's potential energy decreases as it rises and its kinetic
energy increases.

Rays from the sun are not considered matter true or false

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.