At one time, scientists believed that protons, electrons, and neutrons were the smallest atomic particles, but now we know that these units are made up of even smaller particles that are called quarks. This intensive analysis of the atom has been helpful in solveing a number of puzzles relating to the nature of the universe.

explanation: doctrine of respondeat superior is a legal doctrine that is commonly used in tort. this principle makes an employer or principal legally responsible for the wrongful acts done by an employee or agent, if such acts occur within the scope of the employment or agency.

answer; the nav calculated at the market close at 4: 00 pm new york time;

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.