Answer:
d. none is the answer we can't hear and see
Evaporation is the process of converting a liquid into vapour in chemistry. The intermolecular force is required to prevent oil from evaporating at room temperature, as stated in the above sentence, Those preventing oil from evaporating at normal temperature.
<h3>What exactly is intermolecular force?</h3>
Intermolecular forces (IMF) are the attracting and repulsive forces that exist between a substance's molecules. These forces function as a bridge between individual molecules of a substance. An intermolecular force is an attractive force that exists between the positive (or protons) components of one molecule and the negative (or electrons) components of another molecule. This force influences the physical and chemical properties of a substance. The boiling point of a substance is proportional to the strength of its intermolecular forces; the higher the boiling point, the stronger the intermolecular forces. We can compare the strengths of intermolecular forces by comparing the boiling points of different substances.
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Total Mechanical Energy = KE + PE
KE = (1/2)mv²
= (1/2)*8*20² = 1600 J
PE = mgh g ≈ 10 m/s²
= 8 * 10 * 85 = 6800J
Total Mechanical = 1600 + 6800 = 8400 J.
The force on the rope is equal for both teams, so its the team who pushes their feet into the ground who will win.
Please give me more information to what you mean.