Consider a short rod carrying a uniformly distributed positive charge.

Which vector most closely represents the direction of the electric field at point P?

1. Vector 1.

2. Vector 2.

3. Vector 3.

4. Vector 4.

5. Vector 5.

6. Vector 6.

7. The answer depends on the sign of the charge on the 'test' particle

arrow coming out of the bar with direction to infinity

Explanation:

In a positively charged bar the electric field lines extend from the bar to infinity, so they are arrow coming out of the bar with direction to infinity, the density of the arrows is indicative of the intensity of the field at the point. Note that the arrows do not cross at any point.

The burden of proof is always considered positive

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.

probably not if net force is zero