An ant is crawling on the sidewalk. at one moment, it is moving south a distance of 12.4 mm. it then turns due southwest (and crawls 17.5 mm. what is the magnitude of the ant's displacement?

The ant's displacement = 21.45 mm

Explanation:

Displacement: This can be defined as the distance moved by a body in a specific direction. The S.I unit of displacement is meter (m). Displacement is a vector quantity. and as such the result of two displacement can be calculated by any of the vector method.

From the attachment,

Note: the ant's displacement forms a right angled triangle.

Thus,

R² = a² + b².................. Equation 1

Where a = 12.4 mm, b = 17.5 mm.

Substituting into equation 1

R² = 12.4² + 17.5²

R² = 153.76+306.25

R² = 460.01

R =√(460.01)

R = 21.45 mm

Thus the ant's displacement = 21.45 mm

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.

answer; (arch); good luck