3. Suppose an object increases its speed from 4.20 m/s to 5.00 m/s over 115 m. How long does this increase in speed take?

By definition of average velocity,

If this object is under constant acceleration, then average velocity is also equal to the average of the initial and final velocities:

Then the time it takes for the object to travel 115 m with this average velocity is

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.

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