(b) Suppose a horizontal circular loop of wire has a diameter of 7cm and is lowered into sample of crude oil and suppose the additional force that is required to pull the loop out of the oil is 0.08N. Calculate
the surface tension of the sample of crude oil. (2 marks)​

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.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle