His force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. the magnitude of the force is different in the two cases, while the directional angle θ is the same. kinetic friction exists between the block and the wall, and the coefficient of kinetic friction is 0.250. the weight of the block is 47.0 n, and the directional angle for the force is θ = 40.0°. determine the magnitude of when the block slides (a) up the wall and (b) down the wall.

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.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .