Problem A spring was at its resting position where it is attached to a wall at its left side and a block at its right side as shown below. The spring constant is k=95.5\,\dfrac{\text N}{\text m}k=95.5 m N k, equals, 95, point, 5, start fraction, start text, N, end text, divided by, start text, m, end text, end fraction. The block is moved rightwards and the spring's right end is displaced from the position of 0.200\,\text m0.200m0, point, 200, start text, m, end text to 0.220\,\text m0.220m0, point, 220, start text, m, end text where it is held in place. All positions are measured from the origin OOO of the wall. What is the spring force exerted on the block?

-1.91

Explanation:

Kahn academy approved

.220m-.200m= .020

-(95.5) (.020) =-1.91

what is the question?

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.