Charges of +3 âµc and –5 âµc are 2 mm from each other. the –5 âµc charge is replaced with a +5 âµc charge. how will the electrical force between the charges compare with the original force? a. same force, but in the opposite direction b. same force, but in the same direction c. greater force, but in the opposite direction d. greater force, but in the same direction

a. same force, but in the opposite direction

Explanation:

Charges of +3 µC and –5 µC are 2 mm from each other. The –5 µC charge is replaced with a +5 µC charge. How will the electrical force between the charges compare with the original force? a. same force, but in the opposite direction b. same force, but in the same direction c. greater force, but in the opposite direction d. greater force, but in the same direction

we know from electric force field that the electric force is directly proportional to the product of the two charges and inversely proportional to the square of the distance apart of the two charges

F=k

k=constant

Q and q= are electric charges measured in coulombs

r=distance apart

k(3)(-5)/r^2=k(3)(5)/r^2

the Left hand side is negative while the right hand side is positive

so b holds

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.

overcharge is the right answer system