A soccer ball is dribbled forward and backward on a soccer pitch. The ball is dribbled from one end, forward 40. feet in 6 seconds, then backwards 17 feet in 12.0 seconds, then forward 55 feet in 7.6 seconds, then backwards 19.6 feet in 3.6 seconds, then forward 22.2 feet in 8.2 seconds. There are 3.28 feet per 1 meter. a) What is the ball's total displacement? B) What is the ball's average velocity from beginning to end?

40.3

Explanation:

The sum of the initial and final velocity is divided by 2 to find the average. The average velocity calculator uses the formula that shows the average velocity (v) equals the sum of the final velocity (v) and the initial velocity (u), divided by 2.

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.