If someone were to throw an object vertically, and catch it as it returned back down, describe how the velocity vector of this object changes over this period.

the g force from when it was thrown to were it comes back down

Explanation:

while your throwing it you applying force which it would have a stronger g force but when the gravitationally pull come into effect it's will lose some of that force

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.

you have to draw the persons position over there